Home / 2,487.54-3,432.27-1,603.20

Finding the Fourth Proportional to 2,487.54, 3,432.27 and 1,603.20

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Solution

The fourth proportional to 2,487.54, 3,432.27 and 1,603.20 is: 2,212.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.54 : 3,432.27 = 1,603.20 : x
  2. Step 2: Convert to fraction form
    2,487.54/3,432.27 = 1,603.20/x
  3. Step 3: Cross multiply
    2,487.54x = 3,432.27 × 1,603.20
  4. Step 4: Simplify right side
    2,487.54x = 5,502,615.26
  5. Step 5: Solve for x
    x = 5,502,615.26/2,487.54
  6. Step 6: Final answer
    x = 2,212.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.