Home / 2,497.31-3,446.29-1,378.28

Finding the Fourth Proportional to 2,497.31, 3,446.29 and 1,378.28

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Solution

The fourth proportional to 2,497.31, 3,446.29 and 1,378.28 is: 1,902.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,497.31 : 3,446.29 = 1,378.28 : x
  2. Step 2: Convert to fraction form
    2,497.31/3,446.29 = 1,378.28/x
  3. Step 3: Cross multiply
    2,497.31x = 3,446.29 × 1,378.28
  4. Step 4: Simplify right side
    2,497.31x = 4,749,931.90
  5. Step 5: Solve for x
    x = 4,749,931.90/2,497.31
  6. Step 6: Final answer
    x = 1,902.02

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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.