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Finding the Fourth Proportional to 2,988.08, 4,482.12 and 1,448

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Solution

The fourth proportional to 2,988.08, 4,482.12 and 1,448 is: 2,172

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.08 : 4,482.12 = 1,448 : x
  2. Step 2: Convert to fraction form
    2,988.08/4,482.12 = 1,448/x
  3. Step 3: Cross multiply
    2,988.08x = 4,482.12 × 1,448
  4. Step 4: Simplify right side
    2,988.08x = 6,490,109.76
  5. Step 5: Solve for x
    x = 6,490,109.76/2,988.08
  6. Step 6: Final answer
    x = 2,172

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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.