Home / 1,902.58-2,625.38-1,116.47

Finding the Fourth Proportional to 1,902.58, 2,625.38 and 1,116.47

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Solution

The fourth proportional to 1,902.58, 2,625.38 and 1,116.47 is: 1,540.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,902.58 : 2,625.38 = 1,116.47 : x
  2. Step 2: Convert to fraction form
    1,902.58/2,625.38 = 1,116.47/x
  3. Step 3: Cross multiply
    1,902.58x = 2,625.38 × 1,116.47
  4. Step 4: Simplify right side
    1,902.58x = 2,931,163.18
  5. Step 5: Solve for x
    x = 2,931,163.18/1,902.58
  6. Step 6: Final answer
    x = 1,540.63

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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.