Home / 2,281.18-3,148.03-1,336.78

Finding the Fourth Proportional to 2,281.18, 3,148.03 and 1,336.78

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Solution

The fourth proportional to 2,281.18, 3,148.03 and 1,336.78 is: 1,844.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.18 : 3,148.03 = 1,336.78 : x
  2. Step 2: Convert to fraction form
    2,281.18/3,148.03 = 1,336.78/x
  3. Step 3: Cross multiply
    2,281.18x = 3,148.03 × 1,336.78
  4. Step 4: Simplify right side
    2,281.18x = 4,208,220.20
  5. Step 5: Solve for x
    x = 4,208,220.20/2,281.18
  6. Step 6: Final answer
    x = 1,844.76

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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.