Home / 1,152.10-1,725.18-979.66

Finding the Fourth Proportional to 1,152.10, 1,725.18 and 979.66

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Solution

The fourth proportional to 1,152.10, 1,725.18 and 979.66 is: 1,466.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152.10 : 1,725.18 = 979.66 : x
  2. Step 2: Convert to fraction form
    1,152.10/1,725.18 = 979.66/x
  3. Step 3: Cross multiply
    1,152.10x = 1,725.18 × 979.66
  4. Step 4: Simplify right side
    1,152.10x = 1,690,089.84
  5. Step 5: Solve for x
    x = 1,690,089.84/1,152.10
  6. Step 6: Final answer
    x = 1,466.96

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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.