Home / 2,447.40-3,377.34-1,328.28

Finding the Fourth Proportional to 2,447.40, 3,377.34 and 1,328.28

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Solution

The fourth proportional to 2,447.40, 3,377.34 and 1,328.28 is: 1,832.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.40 : 3,377.34 = 1,328.28 : x
  2. Step 2: Convert to fraction form
    2,447.40/3,377.34 = 1,328.28/x
  3. Step 3: Cross multiply
    2,447.40x = 3,377.34 × 1,328.28
  4. Step 4: Simplify right side
    2,447.40x = 4,486,053.18
  5. Step 5: Solve for x
    x = 4,486,053.18/2,447.40
  6. Step 6: Final answer
    x = 1,832.99

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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.