Home / 4,587.28-6,876.84-1,988.80

Finding the Fourth Proportional to 4,587.28, 6,876.84 and 1,988.80

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Solution

The fourth proportional to 4,587.28, 6,876.84 and 1,988.80 is: 2,981.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,587.28 : 6,876.84 = 1,988.80 : x
  2. Step 2: Convert to fraction form
    4,587.28/6,876.84 = 1,988.80/x
  3. Step 3: Cross multiply
    4,587.28x = 6,876.84 × 1,988.80
  4. Step 4: Simplify right side
    4,587.28x = 13,676,659.39
  5. Step 5: Solve for x
    x = 13,676,659.39/4,587.28
  6. Step 6: Final answer
    x = 2,981.43

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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.