Home / 7,781.20-10,737.67-4,797.31

Finding the Fourth Proportional to 7,781.20, 10,737.67 and 4,797.31

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Solution

The fourth proportional to 7,781.20, 10,737.67 and 4,797.31 is: 6,620.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,781.20 : 10,737.67 = 4,797.31 : x
  2. Step 2: Convert to fraction form
    7,781.20/10,737.67 = 4,797.31/x
  3. Step 3: Cross multiply
    7,781.20x = 10,737.67 × 4,797.31
  4. Step 4: Simplify right side
    7,781.20x = 51,511,931.67
  5. Step 5: Solve for x
    x = 51,511,931.67/7,781.20
  6. Step 6: Final answer
    x = 6,620.05

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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.