Home / 2,281.14-3,148.02-1,286.55

Finding the Fourth Proportional to 2,281.14, 3,148.02 and 1,286.55

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Solution

The fourth proportional to 2,281.14, 3,148.02 and 1,286.55 is: 1,775.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.14 : 3,148.02 = 1,286.55 : x
  2. Step 2: Convert to fraction form
    2,281.14/3,148.02 = 1,286.55/x
  3. Step 3: Cross multiply
    2,281.14x = 3,148.02 × 1,286.55
  4. Step 4: Simplify right side
    2,281.14x = 4,050,085.13
  5. Step 5: Solve for x
    x = 4,050,085.13/2,281.14
  6. Step 6: Final answer
    x = 1,775.47

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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.