Home / 6,475.68-9,715.14-2,581.20

Finding the Fourth Proportional to 6,475.68, 9,715.14 and 2,581.20

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Solution

The fourth proportional to 6,475.68, 9,715.14 and 2,581.20 is: 3,872.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,475.68 : 9,715.14 = 2,581.20 : x
  2. Step 2: Convert to fraction form
    6,475.68/9,715.14 = 2,581.20/x
  3. Step 3: Cross multiply
    6,475.68x = 9,715.14 × 2,581.20
  4. Step 4: Simplify right side
    6,475.68x = 25,076,719.37
  5. Step 5: Solve for x
    x = 25,076,719.37/6,475.68
  6. Step 6: Final answer
    x = 3,872.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.