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Finding the Fourth Proportional to 3,200.72, 4,800.53 and 1,009.13

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Solution

The fourth proportional to 3,200.72, 4,800.53 and 1,009.13 is: 1,513.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,200.72 : 4,800.53 = 1,009.13 : x
  2. Step 2: Convert to fraction form
    3,200.72/4,800.53 = 1,009.13/x
  3. Step 3: Cross multiply
    3,200.72x = 4,800.53 × 1,009.13
  4. Step 4: Simplify right side
    3,200.72x = 4,844,337.36
  5. Step 5: Solve for x
    x = 4,844,337.36/3,200.72
  6. Step 6: Final answer
    x = 1,513.52

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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.