Home / 2,274.18-3,138.30-1,488.21

Finding the Fourth Proportional to 2,274.18, 3,138.30 and 1,488.21

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Solution

The fourth proportional to 2,274.18, 3,138.30 and 1,488.21 is: 2,053.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,274.18 : 3,138.30 = 1,488.21 : x
  2. Step 2: Convert to fraction form
    2,274.18/3,138.30 = 1,488.21/x
  3. Step 3: Cross multiply
    2,274.18x = 3,138.30 × 1,488.21
  4. Step 4: Simplify right side
    2,274.18x = 4,670,449.44
  5. Step 5: Solve for x
    x = 4,670,449.44/2,274.18
  6. Step 6: Final answer
    x = 2,053.69

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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.