Home / 7,778.57-10,734.64-4,754.18

Finding the Fourth Proportional to 7,778.57, 10,734.64 and 4,754.18

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Solution

The fourth proportional to 7,778.57, 10,734.64 and 4,754.18 is: 6,560.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778.57 : 10,734.64 = 4,754.18 : x
  2. Step 2: Convert to fraction form
    7,778.57/10,734.64 = 4,754.18/x
  3. Step 3: Cross multiply
    7,778.57x = 10,734.64 × 4,754.18
  4. Step 4: Simplify right side
    7,778.57x = 51,034,398.91
  5. Step 5: Solve for x
    x = 51,034,398.91/7,778.57
  6. Step 6: Final answer
    x = 6,560.90

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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.