Home / 2,265.17-3,125.90-1,270.45

Finding the Fourth Proportional to 2,265.17, 3,125.90 and 1,270.45

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Solution

The fourth proportional to 2,265.17, 3,125.90 and 1,270.45 is: 1,753.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,265.17 : 3,125.90 = 1,270.45 : x
  2. Step 2: Convert to fraction form
    2,265.17/3,125.90 = 1,270.45/x
  3. Step 3: Cross multiply
    2,265.17x = 3,125.90 × 1,270.45
  4. Step 4: Simplify right side
    2,265.17x = 3,971,277.67
  5. Step 5: Solve for x
    x = 3,971,277.67/2,265.17
  6. Step 6: Final answer
    x = 1,753.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.