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Finding the Fourth Proportional to 2,920.64, 4,382.18 and 1,752.89

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Solution

The fourth proportional to 2,920.64, 4,382.18 and 1,752.89 is: 2,630.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.64 : 4,382.18 = 1,752.89 : x
  2. Step 2: Convert to fraction form
    2,920.64/4,382.18 = 1,752.89/x
  3. Step 3: Cross multiply
    2,920.64x = 4,382.18 × 1,752.89
  4. Step 4: Simplify right side
    2,920.64x = 7,681,479.50
  5. Step 5: Solve for x
    x = 7,681,479.50/2,920.64
  6. Step 6: Final answer
    x = 2,630.07

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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.