Home / 5,043.60-6,960.14-2,805.70

Finding the Fourth Proportional to 5,043.60, 6,960.14 and 2,805.70

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Solution

The fourth proportional to 5,043.60, 6,960.14 and 2,805.70 is: 3,871.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,043.60 : 6,960.14 = 2,805.70 : x
  2. Step 2: Convert to fraction form
    5,043.60/6,960.14 = 2,805.70/x
  3. Step 3: Cross multiply
    5,043.60x = 6,960.14 × 2,805.70
  4. Step 4: Simplify right side
    5,043.60x = 19,528,064.80
  5. Step 5: Solve for x
    x = 19,528,064.80/5,043.60
  6. Step 6: Final answer
    x = 3,871.85

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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.