Home / 3,436.74-5,157.45-1,247.22

Finding the Fourth Proportional to 3,436.74, 5,157.45 and 1,247.22

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Solution

The fourth proportional to 3,436.74, 5,157.45 and 1,247.22 is: 1,871.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,436.74 : 5,157.45 = 1,247.22 : x
  2. Step 2: Convert to fraction form
    3,436.74/5,157.45 = 1,247.22/x
  3. Step 3: Cross multiply
    3,436.74x = 5,157.45 × 1,247.22
  4. Step 4: Simplify right side
    3,436.74x = 6,432,474.79
  5. Step 5: Solve for x
    x = 6,432,474.79/3,436.74
  6. Step 6: Final answer
    x = 1,871.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.