Home / 1,817.28-2,508.30-1,118.25

Finding the Fourth Proportional to 1,817.28, 2,508.30 and 1,118.25

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Solution

The fourth proportional to 1,817.28, 2,508.30 and 1,118.25 is: 1,543.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.28 : 2,508.30 = 1,118.25 : x
  2. Step 2: Convert to fraction form
    1,817.28/2,508.30 = 1,118.25/x
  3. Step 3: Cross multiply
    1,817.28x = 2,508.30 × 1,118.25
  4. Step 4: Simplify right side
    1,817.28x = 2,804,906.48
  5. Step 5: Solve for x
    x = 2,804,906.48/1,817.28
  6. Step 6: Final answer
    x = 1,543.46

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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.