Home / 2,487.12-3,432.23-1,368.06

Finding the Fourth Proportional to 2,487.12, 3,432.23 and 1,368.06

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Solution

The fourth proportional to 2,487.12, 3,432.23 and 1,368.06 is: 1,887.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.12 : 3,432.23 = 1,368.06 : x
  2. Step 2: Convert to fraction form
    2,487.12/3,432.23 = 1,368.06/x
  3. Step 3: Cross multiply
    2,487.12x = 3,432.23 × 1,368.06
  4. Step 4: Simplify right side
    2,487.12x = 4,695,496.57
  5. Step 5: Solve for x
    x = 4,695,496.57/2,487.12
  6. Step 6: Final answer
    x = 1,887.93

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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.