Home / 5,165.26-7,127.86-2,807.35

Finding the Fourth Proportional to 5,165.26, 7,127.86 and 2,807.35

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Solution

The fourth proportional to 5,165.26, 7,127.86 and 2,807.35 is: 3,874.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,165.26 : 7,127.86 = 2,807.35 : x
  2. Step 2: Convert to fraction form
    5,165.26/7,127.86 = 2,807.35/x
  3. Step 3: Cross multiply
    5,165.26x = 7,127.86 × 2,807.35
  4. Step 4: Simplify right side
    5,165.26x = 20,010,397.77
  5. Step 5: Solve for x
    x = 20,010,397.77/5,165.26
  6. Step 6: Final answer
    x = 3,874.03

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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.