Home / 1,157.80-1,727.92-1,063.32

Finding the Fourth Proportional to 1,157.80, 1,727.92 and 1,063.32

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Solution

The fourth proportional to 1,157.80, 1,727.92 and 1,063.32 is: 1,586.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157.80 : 1,727.92 = 1,063.32 : x
  2. Step 2: Convert to fraction form
    1,157.80/1,727.92 = 1,063.32/x
  3. Step 3: Cross multiply
    1,157.80x = 1,727.92 × 1,063.32
  4. Step 4: Simplify right side
    1,157.80x = 1,837,331.89
  5. Step 5: Solve for x
    x = 1,837,331.89/1,157.80
  6. Step 6: Final answer
    x = 1,586.92

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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.