Home / 1,565.46-2,158.92-976.05

Finding the Fourth Proportional to 1,565.46, 2,158.92 and 976.05

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Solution

The fourth proportional to 1,565.46, 2,158.92 and 976.05 is: 1,346.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565.46 : 2,158.92 = 976.05 : x
  2. Step 2: Convert to fraction form
    1,565.46/2,158.92 = 976.05/x
  3. Step 3: Cross multiply
    1,565.46x = 2,158.92 × 976.05
  4. Step 4: Simplify right side
    1,565.46x = 2,107,213.87
  5. Step 5: Solve for x
    x = 2,107,213.87/1,565.46
  6. Step 6: Final answer
    x = 1,346.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.