Home / 2,490.36-3,436.64-1,371.29

Finding the Fourth Proportional to 2,490.36, 3,436.64 and 1,371.29

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Solution

The fourth proportional to 2,490.36, 3,436.64 and 1,371.29 is: 1,892.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.36 : 3,436.64 = 1,371.29 : x
  2. Step 2: Convert to fraction form
    2,490.36/3,436.64 = 1,371.29/x
  3. Step 3: Cross multiply
    2,490.36x = 3,436.64 × 1,371.29
  4. Step 4: Simplify right side
    2,490.36x = 4,712,611.17
  5. Step 5: Solve for x
    x = 4,712,611.17/2,490.36
  6. Step 6: Final answer
    x = 1,892.34

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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.