Home / 1,650.96-2,472.75-1,428.66

Finding the Fourth Proportional to 1,650.96, 2,472.75 and 1,428.66

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Solution

The fourth proportional to 1,650.96, 2,472.75 and 1,428.66 is: 2,139.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,650.96 : 2,472.75 = 1,428.66 : x
  2. Step 2: Convert to fraction form
    1,650.96/2,472.75 = 1,428.66/x
  3. Step 3: Cross multiply
    1,650.96x = 2,472.75 × 1,428.66
  4. Step 4: Simplify right side
    1,650.96x = 3,532,719.02
  5. Step 5: Solve for x
    x = 3,532,719.02/1,650.96
  6. Step 6: Final answer
    x = 2,139.80

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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.