Home / 7,742.28-10,678.91-4,759.76

Finding the Fourth Proportional to 7,742.28, 10,678.91 and 4,759.76

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Solution

The fourth proportional to 7,742.28, 10,678.91 and 4,759.76 is: 6,565.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,742.28 : 10,678.91 = 4,759.76 : x
  2. Step 2: Convert to fraction form
    7,742.28/10,678.91 = 4,759.76/x
  3. Step 3: Cross multiply
    7,742.28x = 10,678.91 × 4,759.76
  4. Step 4: Simplify right side
    7,742.28x = 50,829,048.66
  5. Step 5: Solve for x
    x = 50,829,048.66/7,742.28
  6. Step 6: Final answer
    x = 6,565.13

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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.