Home / 3,465.59-4,781.70-2,139.35

Finding the Fourth Proportional to 3,465.59, 4,781.70 and 2,139.35

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Solution

The fourth proportional to 3,465.59, 4,781.70 and 2,139.35 is: 2,951.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,465.59 : 4,781.70 = 2,139.35 : x
  2. Step 2: Convert to fraction form
    3,465.59/4,781.70 = 2,139.35/x
  3. Step 3: Cross multiply
    3,465.59x = 4,781.70 × 2,139.35
  4. Step 4: Simplify right side
    3,465.59x = 10,229,729.90
  5. Step 5: Solve for x
    x = 10,229,729.90/3,465.59
  6. Step 6: Final answer
    x = 2,951.80

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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.