Home / 5,156.26-7,115.62-2,918.08

Finding the Fourth Proportional to 5,156.26, 7,115.62 and 2,918.08

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Solution

The fourth proportional to 5,156.26, 7,115.62 and 2,918.08 is: 4,026.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.26 : 7,115.62 = 2,918.08 : x
  2. Step 2: Convert to fraction form
    5,156.26/7,115.62 = 2,918.08/x
  3. Step 3: Cross multiply
    5,156.26x = 7,115.62 × 2,918.08
  4. Step 4: Simplify right side
    5,156.26x = 20,763,948.41
  5. Step 5: Solve for x
    x = 20,763,948.41/5,156.26
  6. Step 6: Final answer
    x = 4,026.94

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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.