Home / 7,319.28-10,100.88-4,175.76

Finding the Fourth Proportional to 7,319.28, 10,100.88 and 4,175.76

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Solution

The fourth proportional to 7,319.28, 10,100.88 and 4,175.76 is: 5,762.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.28 : 10,100.88 = 4,175.76 : x
  2. Step 2: Convert to fraction form
    7,319.28/10,100.88 = 4,175.76/x
  3. Step 3: Cross multiply
    7,319.28x = 10,100.88 × 4,175.76
  4. Step 4: Simplify right side
    7,319.28x = 42,178,850.67
  5. Step 5: Solve for x
    x = 42,178,850.67/7,319.28
  6. Step 6: Final answer
    x = 5,762.70

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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.