Home / 3,432.15-5,147.21-1,457.75

Finding the Fourth Proportional to 3,432.15, 5,147.21 and 1,457.75

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Solution

The fourth proportional to 3,432.15, 5,147.21 and 1,457.75 is: 2,186.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.15 : 5,147.21 = 1,457.75 : x
  2. Step 2: Convert to fraction form
    3,432.15/5,147.21 = 1,457.75/x
  3. Step 3: Cross multiply
    3,432.15x = 5,147.21 × 1,457.75
  4. Step 4: Simplify right side
    3,432.15x = 7,503,312.35
  5. Step 5: Solve for x
    x = 7,503,312.35/3,432.15
  6. Step 6: Final answer
    x = 2,186.18

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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.