Home / 5,147.19-7,102.36-2,909.05

Finding the Fourth Proportional to 5,147.19, 7,102.36 and 2,909.05

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Solution

The fourth proportional to 5,147.19, 7,102.36 and 2,909.05 is: 4,014.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.19 : 7,102.36 = 2,909.05 : x
  2. Step 2: Convert to fraction form
    5,147.19/7,102.36 = 2,909.05/x
  3. Step 3: Cross multiply
    5,147.19x = 7,102.36 × 2,909.05
  4. Step 4: Simplify right side
    5,147.19x = 20,661,105.81
  5. Step 5: Solve for x
    x = 20,661,105.81/5,147.19
  6. Step 6: Final answer
    x = 4,014.06

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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.