Home / 1,863.98-2,572.18-1,118.35

Finding the Fourth Proportional to 1,863.98, 2,572.18 and 1,118.35

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Solution

The fourth proportional to 1,863.98, 2,572.18 and 1,118.35 is: 1,543.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863.98 : 2,572.18 = 1,118.35 : x
  2. Step 2: Convert to fraction form
    1,863.98/2,572.18 = 1,118.35/x
  3. Step 3: Cross multiply
    1,863.98x = 2,572.18 × 1,118.35
  4. Step 4: Simplify right side
    1,863.98x = 2,876,597.50
  5. Step 5: Solve for x
    x = 2,876,597.50/1,863.98
  6. Step 6: Final answer
    x = 1,543.26

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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.