Home / 7,086.90-9,781.65-4,293.30

Finding the Fourth Proportional to 7,086.90, 9,781.65 and 4,293.30

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Solution

The fourth proportional to 7,086.90, 9,781.65 and 4,293.30 is: 5,925.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,086.90 : 9,781.65 = 4,293.30 : x
  2. Step 2: Convert to fraction form
    7,086.90/9,781.65 = 4,293.30/x
  3. Step 3: Cross multiply
    7,086.90x = 9,781.65 × 4,293.30
  4. Step 4: Simplify right side
    7,086.90x = 41,995,557.95
  5. Step 5: Solve for x
    x = 41,995,557.95/7,086.90
  6. Step 6: Final answer
    x = 5,925.80

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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.