Home / 3,386.95-4,671.48-2,391.19

Finding the Fourth Proportional to 3,386.95, 4,671.48 and 2,391.19

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Solution

The fourth proportional to 3,386.95, 4,671.48 and 2,391.19 is: 3,298.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.95 : 4,671.48 = 2,391.19 : x
  2. Step 2: Convert to fraction form
    3,386.95/4,671.48 = 2,391.19/x
  3. Step 3: Cross multiply
    3,386.95x = 4,671.48 × 2,391.19
  4. Step 4: Simplify right side
    3,386.95x = 11,170,396.26
  5. Step 5: Solve for x
    x = 11,170,396.26/3,386.95
  6. Step 6: Final answer
    x = 3,298.07

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.