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Finding the Fourth Proportional to 2,898.83, 4,000.28 and 1,572.49

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Solution

The fourth proportional to 2,898.83, 4,000.28 and 1,572.49 is: 2,169.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,898.83 : 4,000.28 = 1,572.49 : x
  2. Step 2: Convert to fraction form
    2,898.83/4,000.28 = 1,572.49/x
  3. Step 3: Cross multiply
    2,898.83x = 4,000.28 × 1,572.49
  4. Step 4: Simplify right side
    2,898.83x = 6,290,382.43
  5. Step 5: Solve for x
    x = 6,290,382.43/2,898.83
  6. Step 6: Final answer
    x = 2,169.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.