Home / 2,400.74-3,311.01-1,561.04

Finding the Fourth Proportional to 2,400.74, 3,311.01 and 1,561.04

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Solution

The fourth proportional to 2,400.74, 3,311.01 and 1,561.04 is: 2,152.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.74 : 3,311.01 = 1,561.04 : x
  2. Step 2: Convert to fraction form
    2,400.74/3,311.01 = 1,561.04/x
  3. Step 3: Cross multiply
    2,400.74x = 3,311.01 × 1,561.04
  4. Step 4: Simplify right side
    2,400.74x = 5,168,614.91
  5. Step 5: Solve for x
    x = 5,168,614.91/2,400.74
  6. Step 6: Final answer
    x = 2,152.93

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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.