Home / 2,561.57-3,534.21-1,565.81

Finding the Fourth Proportional to 2,561.57, 3,534.21 and 1,565.81

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Solution

The fourth proportional to 2,561.57, 3,534.21 and 1,565.81 is: 2,160.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,561.57 : 3,534.21 = 1,565.81 : x
  2. Step 2: Convert to fraction form
    2,561.57/3,534.21 = 1,565.81/x
  3. Step 3: Cross multiply
    2,561.57x = 3,534.21 × 1,565.81
  4. Step 4: Simplify right side
    2,561.57x = 5,533,882.60
  5. Step 5: Solve for x
    x = 5,533,882.60/2,561.57
  6. Step 6: Final answer
    x = 2,160.34

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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.