Home / 4,451.60-6,680.66-1,988.03

Finding the Fourth Proportional to 4,451.60, 6,680.66 and 1,988.03

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Solution

The fourth proportional to 4,451.60, 6,680.66 and 1,988.03 is: 2,983.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,451.60 : 6,680.66 = 1,988.03 : x
  2. Step 2: Convert to fraction form
    4,451.60/6,680.66 = 1,988.03/x
  3. Step 3: Cross multiply
    4,451.60x = 6,680.66 × 1,988.03
  4. Step 4: Simplify right side
    4,451.60x = 13,281,309.16
  5. Step 5: Solve for x
    x = 13,281,309.16/4,451.60
  6. Step 6: Final answer
    x = 2,983.49

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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.