Home / 2,490.77-3,437.27-1,371.68

Finding the Fourth Proportional to 2,490.77, 3,437.27 and 1,371.68

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Solution

The fourth proportional to 2,490.77, 3,437.27 and 1,371.68 is: 1,892.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.77 : 3,437.27 = 1,371.68 : x
  2. Step 2: Convert to fraction form
    2,490.77/3,437.27 = 1,371.68/x
  3. Step 3: Cross multiply
    2,490.77x = 3,437.27 × 1,371.68
  4. Step 4: Simplify right side
    2,490.77x = 4,714,810.47
  5. Step 5: Solve for x
    x = 4,714,810.47/2,490.77
  6. Step 6: Final answer
    x = 1,892.92

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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.