Home / 2,291.83-3,432.32-1,455.90

Finding the Fourth Proportional to 2,291.83, 3,432.32 and 1,455.90

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Solution

The fourth proportional to 2,291.83, 3,432.32 and 1,455.90 is: 2,180.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.83 : 3,432.32 = 1,455.90 : x
  2. Step 2: Convert to fraction form
    2,291.83/3,432.32 = 1,455.90/x
  3. Step 3: Cross multiply
    2,291.83x = 3,432.32 × 1,455.90
  4. Step 4: Simplify right side
    2,291.83x = 4,997,119.63
  5. Step 5: Solve for x
    x = 4,997,119.63/2,291.83
  6. Step 6: Final answer
    x = 2,180.41

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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.