Home / 3,115.02-4,671.72-923.16

Finding the Fourth Proportional to 3,115.02, 4,671.72 and 923.16

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Solution

The fourth proportional to 3,115.02, 4,671.72 and 923.16 is: 1,384.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.02 : 4,671.72 = 923.16 : x
  2. Step 2: Convert to fraction form
    3,115.02/4,671.72 = 923.16/x
  3. Step 3: Cross multiply
    3,115.02x = 4,671.72 × 923.16
  4. Step 4: Simplify right side
    3,115.02x = 4,312,745.04
  5. Step 5: Solve for x
    x = 4,312,745.04/3,115.02
  6. Step 6: Final answer
    x = 1,384.50

Related Problems

Find fourth proportional to 1,557.51, 2,335.86 and 461.58
Half scale
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Double scale
Find fourth proportional to 3,116.02, 4,673.22 and 924.16
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.