Home / 4,327.32-6,487.60-1,988.88

Finding the Fourth Proportional to 4,327.32, 6,487.60 and 1,988.88

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Solution

The fourth proportional to 4,327.32, 6,487.60 and 1,988.88 is: 2,981.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,327.32 : 6,487.60 = 1,988.88 : x
  2. Step 2: Convert to fraction form
    4,327.32/6,487.60 = 1,988.88/x
  3. Step 3: Cross multiply
    4,327.32x = 6,487.60 × 1,988.88
  4. Step 4: Simplify right side
    4,327.32x = 12,903,057.89
  5. Step 5: Solve for x
    x = 12,903,057.89/4,327.32
  6. Step 6: Final answer
    x = 2,981.77

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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.