Home / 1,342.02-2,013.72-611.19

Finding the Fourth Proportional to 1,342.02, 2,013.72 and 611.19

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Solution

The fourth proportional to 1,342.02, 2,013.72 and 611.19 is: 917.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342.02 : 2,013.72 = 611.19 : x
  2. Step 2: Convert to fraction form
    1,342.02/2,013.72 = 611.19/x
  3. Step 3: Cross multiply
    1,342.02x = 2,013.72 × 611.19
  4. Step 4: Simplify right side
    1,342.02x = 1,230,765.53
  5. Step 5: Solve for x
    x = 1,230,765.53/1,342.02
  6. Step 6: Final answer
    x = 917.10

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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.