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Finding the Fourth Proportional to 1,153.52, 1,718.64 and 1,079.04

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Solution

The fourth proportional to 1,153.52, 1,718.64 and 1,079.04 is: 1,607.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153.52 : 1,718.64 = 1,079.04 : x
  2. Step 2: Convert to fraction form
    1,153.52/1,718.64 = 1,079.04/x
  3. Step 3: Cross multiply
    1,153.52x = 1,718.64 × 1,079.04
  4. Step 4: Simplify right side
    1,153.52x = 1,854,481.31
  5. Step 5: Solve for x
    x = 1,854,481.31/1,153.52
  6. Step 6: Final answer
    x = 1,607.67

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.