Home / 2,565.20-3,541.86-1,571.84

Finding the Fourth Proportional to 2,565.20, 3,541.86 and 1,571.84

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Solution

The fourth proportional to 2,565.20, 3,541.86 and 1,571.84 is: 2,170.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,565.20 : 3,541.86 = 1,571.84 : x
  2. Step 2: Convert to fraction form
    2,565.20/3,541.86 = 1,571.84/x
  3. Step 3: Cross multiply
    2,565.20x = 3,541.86 × 1,571.84
  4. Step 4: Simplify right side
    2,565.20x = 5,567,237.22
  5. Step 5: Solve for x
    x = 5,567,237.22/2,565.20
  6. Step 6: Final answer
    x = 2,170.29

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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.