Home / 3,748.32-5,172.93-2,487.15

Finding the Fourth Proportional to 3,748.32, 5,172.93 and 2,487.15

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Solution

The fourth proportional to 3,748.32, 5,172.93 and 2,487.15 is: 3,432.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748.32 : 5,172.93 = 2,487.15 : x
  2. Step 2: Convert to fraction form
    3,748.32/5,172.93 = 2,487.15/x
  3. Step 3: Cross multiply
    3,748.32x = 5,172.93 × 2,487.15
  4. Step 4: Simplify right side
    3,748.32x = 12,865,852.85
  5. Step 5: Solve for x
    x = 12,865,852.85/3,748.32
  6. Step 6: Final answer
    x = 3,432.43

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1.5x scale

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.