Home / 2,490.95-3,437.40-1,371.86

Finding the Fourth Proportional to 2,490.95, 3,437.40 and 1,371.86

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Solution

The fourth proportional to 2,490.95, 3,437.40 and 1,371.86 is: 1,893.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.95 : 3,437.40 = 1,371.86 : x
  2. Step 2: Convert to fraction form
    2,490.95/3,437.40 = 1,371.86/x
  3. Step 3: Cross multiply
    2,490.95x = 3,437.40 × 1,371.86
  4. Step 4: Simplify right side
    2,490.95x = 4,715,630.50
  5. Step 5: Solve for x
    x = 4,715,630.50/2,490.95
  6. Step 6: Final answer
    x = 1,893.10

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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.