Home / 2,265.57-3,126.60-1,257.53

Finding the Fourth Proportional to 2,265.57, 3,126.60 and 1,257.53

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Solution

The fourth proportional to 2,265.57, 3,126.60 and 1,257.53 is: 1,735.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,265.57 : 3,126.60 = 1,257.53 : x
  2. Step 2: Convert to fraction form
    2,265.57/3,126.60 = 1,257.53/x
  3. Step 3: Cross multiply
    2,265.57x = 3,126.60 × 1,257.53
  4. Step 4: Simplify right side
    2,265.57x = 3,931,777.67
  5. Step 5: Solve for x
    x = 3,931,777.67/2,265.57
  6. Step 6: Final answer
    x = 1,735.45

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1.5x scale

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.