Home / 1,565.13-2,158.20-1,319.16

Finding the Fourth Proportional to 1,565.13, 2,158.20 and 1,319.16

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Solution

The fourth proportional to 1,565.13, 2,158.20 and 1,319.16 is: 1,819.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565.13 : 2,158.20 = 1,319.16 : x
  2. Step 2: Convert to fraction form
    1,565.13/2,158.20 = 1,319.16/x
  3. Step 3: Cross multiply
    1,565.13x = 2,158.20 × 1,319.16
  4. Step 4: Simplify right side
    1,565.13x = 2,847,011.11
  5. Step 5: Solve for x
    x = 2,847,011.11/1,565.13
  6. Step 6: Final answer
    x = 1,819.03

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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.