Home / 1,227.89-1,829.40-1,165.92

Finding the Fourth Proportional to 1,227.89, 1,829.40 and 1,165.92

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Solution

The fourth proportional to 1,227.89, 1,829.40 and 1,165.92 is: 1,737.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227.89 : 1,829.40 = 1,165.92 : x
  2. Step 2: Convert to fraction form
    1,227.89/1,829.40 = 1,165.92/x
  3. Step 3: Cross multiply
    1,227.89x = 1,829.40 × 1,165.92
  4. Step 4: Simplify right side
    1,227.89x = 2,132,938.42
  5. Step 5: Solve for x
    x = 2,132,938.42/1,227.89
  6. Step 6: Final answer
    x = 1,737.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.