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Finding the Fourth Proportional to 1,664.76, 2,495.28 and 1,079.52

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Solution

The fourth proportional to 1,664.76, 2,495.28 and 1,079.52 is: 1,618.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664.76 : 2,495.28 = 1,079.52 : x
  2. Step 2: Convert to fraction form
    1,664.76/2,495.28 = 1,079.52/x
  3. Step 3: Cross multiply
    1,664.76x = 2,495.28 × 1,079.52
  4. Step 4: Simplify right side
    1,664.76x = 2,693,704.67
  5. Step 5: Solve for x
    x = 2,693,704.67/1,664.76
  6. Step 6: Final answer
    x = 1,618.07

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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.