Home / 7,781.08-10,737.96-4,637.40

Finding the Fourth Proportional to 7,781.08, 10,737.96 and 4,637.40

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Solution

The fourth proportional to 7,781.08, 10,737.96 and 4,637.40 is: 6,399.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,781.08 : 10,737.96 = 4,637.40 : x
  2. Step 2: Convert to fraction form
    7,781.08/10,737.96 = 4,637.40/x
  3. Step 3: Cross multiply
    7,781.08x = 10,737.96 × 4,637.40
  4. Step 4: Simplify right side
    7,781.08x = 49,796,215.70
  5. Step 5: Solve for x
    x = 49,796,215.70/7,781.08
  6. Step 6: Final answer
    x = 6,399.65

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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.