Home / 3,439.45-5,156.89-1,248.19

Finding the Fourth Proportional to 3,439.45, 5,156.89 and 1,248.19

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Solution

The fourth proportional to 3,439.45, 5,156.89 and 1,248.19 is: 1,871.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.45 : 5,156.89 = 1,248.19 : x
  2. Step 2: Convert to fraction form
    3,439.45/5,156.89 = 1,248.19/x
  3. Step 3: Cross multiply
    3,439.45x = 5,156.89 × 1,248.19
  4. Step 4: Simplify right side
    3,439.45x = 6,436,795.03
  5. Step 5: Solve for x
    x = 6,436,795.03/3,439.45
  6. Step 6: Final answer
    x = 1,871.46

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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.