Home / 2,490.02-3,436.68-1,442.08

Finding the Fourth Proportional to 2,490.02, 3,436.68 and 1,442.08

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Solution

The fourth proportional to 2,490.02, 3,436.68 and 1,442.08 is: 1,990.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.02 : 3,436.68 = 1,442.08 : x
  2. Step 2: Convert to fraction form
    2,490.02/3,436.68 = 1,442.08/x
  3. Step 3: Cross multiply
    2,490.02x = 3,436.68 × 1,442.08
  4. Step 4: Simplify right side
    2,490.02x = 4,955,967.49
  5. Step 5: Solve for x
    x = 4,955,967.49/2,490.02
  6. Step 6: Final answer
    x = 1,990.33

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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.