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Finding the Fourth Proportional to 1,089.98, 1,626.04 and 1,060.22

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Solution

The fourth proportional to 1,089.98, 1,626.04 and 1,060.22 is: 1,581.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089.98 : 1,626.04 = 1,060.22 : x
  2. Step 2: Convert to fraction form
    1,089.98/1,626.04 = 1,060.22/x
  3. Step 3: Cross multiply
    1,089.98x = 1,626.04 × 1,060.22
  4. Step 4: Simplify right side
    1,089.98x = 1,723,960.13
  5. Step 5: Solve for x
    x = 1,723,960.13/1,089.98
  6. Step 6: Final answer
    x = 1,581.64

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1.5x scale

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.