Home / 1,603.20-2,409.48-1,331.04

Finding the Fourth Proportional to 1,603.20, 2,409.48 and 1,331.04

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Solution

The fourth proportional to 1,603.20, 2,409.48 and 1,331.04 is: 2,000.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603.20 : 2,409.48 = 1,331.04 : x
  2. Step 2: Convert to fraction form
    1,603.20/2,409.48 = 1,331.04/x
  3. Step 3: Cross multiply
    1,603.20x = 2,409.48 × 1,331.04
  4. Step 4: Simplify right side
    1,603.20x = 3,207,114.26
  5. Step 5: Solve for x
    x = 3,207,114.26/1,603.20
  6. Step 6: Final answer
    x = 2,000.45

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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.