Home / 1,445.39-2,168.09-1,158.65

Finding the Fourth Proportional to 1,445.39, 2,168.09 and 1,158.65

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Solution

The fourth proportional to 1,445.39, 2,168.09 and 1,158.65 is: 1,737.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.39 : 2,168.09 = 1,158.65 : x
  2. Step 2: Convert to fraction form
    1,445.39/2,168.09 = 1,158.65/x
  3. Step 3: Cross multiply
    1,445.39x = 2,168.09 × 1,158.65
  4. Step 4: Simplify right side
    1,445.39x = 2,512,057.48
  5. Step 5: Solve for x
    x = 2,512,057.48/1,445.39
  6. Step 6: Final answer
    x = 1,737.98

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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.