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Finding the Fourth Proportional to 3,147.04, 4,717.72 and 1,501.92

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Solution

The fourth proportional to 3,147.04, 4,717.72 and 1,501.92 is: 2,251.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.04 : 4,717.72 = 1,501.92 : x
  2. Step 2: Convert to fraction form
    3,147.04/4,717.72 = 1,501.92/x
  3. Step 3: Cross multiply
    3,147.04x = 4,717.72 × 1,501.92
  4. Step 4: Simplify right side
    3,147.04x = 7,085,638.02
  5. Step 5: Solve for x
    x = 7,085,638.02/3,147.04
  6. Step 6: Final answer
    x = 2,251.52

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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.