Home / 4,113.90-6,171.45-1,340.70

Finding the Fourth Proportional to 4,113.90, 6,171.45 and 1,340.70

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Solution

The fourth proportional to 4,113.90, 6,171.45 and 1,340.70 is: 2,011.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,113.90 : 6,171.45 = 1,340.70 : x
  2. Step 2: Convert to fraction form
    4,113.90/6,171.45 = 1,340.70/x
  3. Step 3: Cross multiply
    4,113.90x = 6,171.45 × 1,340.70
  4. Step 4: Simplify right side
    4,113.90x = 8,274,063.02
  5. Step 5: Solve for x
    x = 8,274,063.02/4,113.90
  6. Step 6: Final answer
    x = 2,011.25

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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.