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Finding the Fourth Proportional to 7,002.64, 10,507.15 and 2,620.44

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Solution

The fourth proportional to 7,002.64, 10,507.15 and 2,620.44 is: 3,931.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,002.64 : 10,507.15 = 2,620.44 : x
  2. Step 2: Convert to fraction form
    7,002.64/10,507.15 = 2,620.44/x
  3. Step 3: Cross multiply
    7,002.64x = 10,507.15 × 2,620.44
  4. Step 4: Simplify right side
    7,002.64x = 27,533,359.42
  5. Step 5: Solve for x
    x = 27,533,359.42/7,002.64
  6. Step 6: Final answer
    x = 3,931.85

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1.5x scale

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.