Home / 2,490.03-3,436.29-1,442.70

Finding the Fourth Proportional to 2,490.03, 3,436.29 and 1,442.70

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Solution

The fourth proportional to 2,490.03, 3,436.29 and 1,442.70 is: 1,990.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.03 : 3,436.29 = 1,442.70 : x
  2. Step 2: Convert to fraction form
    2,490.03/3,436.29 = 1,442.70/x
  3. Step 3: Cross multiply
    2,490.03x = 3,436.29 × 1,442.70
  4. Step 4: Simplify right side
    2,490.03x = 4,957,535.58
  5. Step 5: Solve for x
    x = 4,957,535.58/2,490.03
  6. Step 6: Final answer
    x = 1,990.95

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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.