Home / 3,431.14-5,145.70-1,456.74

Finding the Fourth Proportional to 3,431.14, 5,145.70 and 1,456.74

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Solution

The fourth proportional to 3,431.14, 5,145.70 and 1,456.74 is: 2,184.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.14 : 5,145.70 = 1,456.74 : x
  2. Step 2: Convert to fraction form
    3,431.14/5,145.70 = 1,456.74/x
  3. Step 3: Cross multiply
    3,431.14x = 5,145.70 × 1,456.74
  4. Step 4: Simplify right side
    3,431.14x = 7,495,947.02
  5. Step 5: Solve for x
    x = 7,495,947.02/3,431.14
  6. Step 6: Final answer
    x = 2,184.68

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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.