Home / 5,109.70-7,050.13-3,119.53

Finding the Fourth Proportional to 5,109.70, 7,050.13 and 3,119.53

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Solution

The fourth proportional to 5,109.70, 7,050.13 and 3,119.53 is: 4,304.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.70 : 7,050.13 = 3,119.53 : x
  2. Step 2: Convert to fraction form
    5,109.70/7,050.13 = 3,119.53/x
  3. Step 3: Cross multiply
    5,109.70x = 7,050.13 × 3,119.53
  4. Step 4: Simplify right side
    5,109.70x = 21,993,092.04
  5. Step 5: Solve for x
    x = 21,993,092.04/5,109.70
  6. Step 6: Final answer
    x = 4,304.18

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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.