Home / 2,493.46-3,440.45-1,431.55

Finding the Fourth Proportional to 2,493.46, 3,440.45 and 1,431.55

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Solution

The fourth proportional to 2,493.46, 3,440.45 and 1,431.55 is: 1,975.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,493.46 : 3,440.45 = 1,431.55 : x
  2. Step 2: Convert to fraction form
    2,493.46/3,440.45 = 1,431.55/x
  3. Step 3: Cross multiply
    2,493.46x = 3,440.45 × 1,431.55
  4. Step 4: Simplify right side
    2,493.46x = 4,925,176.20
  5. Step 5: Solve for x
    x = 4,925,176.20/2,493.46
  6. Step 6: Final answer
    x = 1,975.24

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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.