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Finding the Fourth Proportional to 3,602.48, 5,398.32 and 2,779.52

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Solution

The fourth proportional to 3,602.48, 5,398.32 and 2,779.52 is: 4,165.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,602.48 : 5,398.32 = 2,779.52 : x
  2. Step 2: Convert to fraction form
    3,602.48/5,398.32 = 2,779.52/x
  3. Step 3: Cross multiply
    3,602.48x = 5,398.32 × 2,779.52
  4. Step 4: Simplify right side
    3,602.48x = 15,004,738.41
  5. Step 5: Solve for x
    x = 15,004,738.41/3,602.48
  6. Step 6: Final answer
    x = 4,165.11

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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.