Home / 2,289.10-3,434.75-1,587.39

Finding the Fourth Proportional to 2,289.10, 3,434.75 and 1,587.39

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Solution

The fourth proportional to 2,289.10, 3,434.75 and 1,587.39 is: 2,381.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.10 : 3,434.75 = 1,587.39 : x
  2. Step 2: Convert to fraction form
    2,289.10/3,434.75 = 1,587.39/x
  3. Step 3: Cross multiply
    2,289.10x = 3,434.75 × 1,587.39
  4. Step 4: Simplify right side
    2,289.10x = 5,452,287.80
  5. Step 5: Solve for x
    x = 5,452,287.80/2,289.10
  6. Step 6: Final answer
    x = 2,381.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.