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Finding the Fourth Proportional to 3,721.92, 5,574.56 and 2,898.88

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Solution

The fourth proportional to 3,721.92, 5,574.56 and 2,898.88 is: 4,341.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.92 : 5,574.56 = 2,898.88 : x
  2. Step 2: Convert to fraction form
    3,721.92/5,574.56 = 2,898.88/x
  3. Step 3: Cross multiply
    3,721.92x = 5,574.56 × 2,898.88
  4. Step 4: Simplify right side
    3,721.92x = 16,159,980.49
  5. Step 5: Solve for x
    x = 16,159,980.49/3,721.92
  6. Step 6: Final answer
    x = 4,341.84

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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.