Home / 2,487.48-3,432.02-1,603.79

Finding the Fourth Proportional to 2,487.48, 3,432.02 and 1,603.79

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Solution

The fourth proportional to 2,487.48, 3,432.02 and 1,603.79 is: 2,212.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.48 : 3,432.02 = 1,603.79 : x
  2. Step 2: Convert to fraction form
    2,487.48/3,432.02 = 1,603.79/x
  3. Step 3: Cross multiply
    2,487.48x = 3,432.02 × 1,603.79
  4. Step 4: Simplify right side
    2,487.48x = 5,504,214.18
  5. Step 5: Solve for x
    x = 5,504,214.18/2,487.48
  6. Step 6: Final answer
    x = 2,212.77

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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.