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Finding the Fourth Proportional to 3,640.48, 5,460.80 and 1,043.52

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Solution

The fourth proportional to 3,640.48, 5,460.80 and 1,043.52 is: 1,565.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.48 : 5,460.80 = 1,043.52 : x
  2. Step 2: Convert to fraction form
    3,640.48/5,460.80 = 1,043.52/x
  3. Step 3: Cross multiply
    3,640.48x = 5,460.80 × 1,043.52
  4. Step 4: Simplify right side
    3,640.48x = 5,698,454.02
  5. Step 5: Solve for x
    x = 5,698,454.02/3,640.48
  6. Step 6: Final answer
    x = 1,565.30

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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.