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Finding the Fourth Proportional to 2,988.60, 4,502.82 and 2,752.44

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Solution

The fourth proportional to 2,988.60, 4,502.82 and 2,752.44 is: 4,147.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.60 : 4,502.82 = 2,752.44 : x
  2. Step 2: Convert to fraction form
    2,988.60/4,502.82 = 2,752.44/x
  3. Step 3: Cross multiply
    2,988.60x = 4,502.82 × 2,752.44
  4. Step 4: Simplify right side
    2,988.60x = 12,393,741.88
  5. Step 5: Solve for x
    x = 12,393,741.88/2,988.60
  6. Step 6: Final answer
    x = 4,147.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.