Home / 1,499.76-2,247-1,281.12

Finding the Fourth Proportional to 1,499.76, 2,247 and 1,281.12

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Solution

The fourth proportional to 1,499.76, 2,247 and 1,281.12 is: 1,919.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,499.76 : 2,247 = 1,281.12 : x
  2. Step 2: Convert to fraction form
    1,499.76/2,247 = 1,281.12/x
  3. Step 3: Cross multiply
    1,499.76x = 2,247 × 1,281.12
  4. Step 4: Simplify right side
    1,499.76x = 2,878,676.64
  5. Step 5: Solve for x
    x = 2,878,676.64/1,499.76
  6. Step 6: Final answer
    x = 1,919.42

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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.