Home / 2,217.40-3,058.50-1,377.24

Finding the Fourth Proportional to 2,217.40, 3,058.50 and 1,377.24

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Solution

The fourth proportional to 2,217.40, 3,058.50 and 1,377.24 is: 1,899.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.40 : 3,058.50 = 1,377.24 : x
  2. Step 2: Convert to fraction form
    2,217.40/3,058.50 = 1,377.24/x
  3. Step 3: Cross multiply
    2,217.40x = 3,058.50 × 1,377.24
  4. Step 4: Simplify right side
    2,217.40x = 4,212,288.54
  5. Step 5: Solve for x
    x = 4,212,288.54/2,217.40
  6. Step 6: Final answer
    x = 1,899.65

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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.