Home / 1,565.50-2,158.34-1,346.80

Finding the Fourth Proportional to 1,565.50, 2,158.34 and 1,346.80

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Solution

The fourth proportional to 1,565.50, 2,158.34 and 1,346.80 is: 1,856.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565.50 : 2,158.34 = 1,346.80 : x
  2. Step 2: Convert to fraction form
    1,565.50/2,158.34 = 1,346.80/x
  3. Step 3: Cross multiply
    1,565.50x = 2,158.34 × 1,346.80
  4. Step 4: Simplify right side
    1,565.50x = 2,906,852.31
  5. Step 5: Solve for x
    x = 2,906,852.31/1,565.50
  6. Step 6: Final answer
    x = 1,856.82

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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.