Home / 2,490.28-3,436.92-1,442.08

Finding the Fourth Proportional to 2,490.28, 3,436.92 and 1,442.08

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Solution

The fourth proportional to 2,490.28, 3,436.92 and 1,442.08 is: 1,990.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.28 : 3,436.92 = 1,442.08 : x
  2. Step 2: Convert to fraction form
    2,490.28/3,436.92 = 1,442.08/x
  3. Step 3: Cross multiply
    2,490.28x = 3,436.92 × 1,442.08
  4. Step 4: Simplify right side
    2,490.28x = 4,956,313.59
  5. Step 5: Solve for x
    x = 4,956,313.59/2,490.28
  6. Step 6: Final answer
    x = 1,990.26

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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.