Home / 4,752.80-7,116.40-3,447.20

Finding the Fourth Proportional to 4,752.80, 7,116.40 and 3,447.20

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Solution

The fourth proportional to 4,752.80, 7,116.40 and 3,447.20 is: 5,161.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,752.80 : 7,116.40 = 3,447.20 : x
  2. Step 2: Convert to fraction form
    4,752.80/7,116.40 = 3,447.20/x
  3. Step 3: Cross multiply
    4,752.80x = 7,116.40 × 3,447.20
  4. Step 4: Simplify right side
    4,752.80x = 24,531,654.08
  5. Step 5: Solve for x
    x = 24,531,654.08/4,752.80
  6. Step 6: Final answer
    x = 5,161.52

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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.