Home / 2,876.60-4,314.96-928.88

Finding the Fourth Proportional to 2,876.60, 4,314.96 and 928.88

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Solution

The fourth proportional to 2,876.60, 4,314.96 and 928.88 is: 1,393.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876.60 : 4,314.96 = 928.88 : x
  2. Step 2: Convert to fraction form
    2,876.60/4,314.96 = 928.88/x
  3. Step 3: Cross multiply
    2,876.60x = 4,314.96 × 928.88
  4. Step 4: Simplify right side
    2,876.60x = 4,008,080.04
  5. Step 5: Solve for x
    x = 4,008,080.04/2,876.60
  6. Step 6: Final answer
    x = 1,393.34

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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.