Home / 3,432.45-5,146.40-1,240.89

Finding the Fourth Proportional to 3,432.45, 5,146.40 and 1,240.89

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Solution

The fourth proportional to 3,432.45, 5,146.40 and 1,240.89 is: 1,860.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.45 : 5,146.40 = 1,240.89 : x
  2. Step 2: Convert to fraction form
    3,432.45/5,146.40 = 1,240.89/x
  3. Step 3: Cross multiply
    3,432.45x = 5,146.40 × 1,240.89
  4. Step 4: Simplify right side
    3,432.45x = 6,386,138.29
  5. Step 5: Solve for x
    x = 6,386,138.29/3,432.45
  6. Step 6: Final answer
    x = 1,860.52

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1.5x scale

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.