Home / 5,165.03-7,127.73-2,807.18

Finding the Fourth Proportional to 5,165.03, 7,127.73 and 2,807.18

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Solution

The fourth proportional to 5,165.03, 7,127.73 and 2,807.18 is: 3,873.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,165.03 : 7,127.73 = 2,807.18 : x
  2. Step 2: Convert to fraction form
    5,165.03/7,127.73 = 2,807.18/x
  3. Step 3: Cross multiply
    5,165.03x = 7,127.73 × 2,807.18
  4. Step 4: Simplify right side
    5,165.03x = 20,008,821.10
  5. Step 5: Solve for x
    x = 20,008,821.10/5,165.03
  6. Step 6: Final answer
    x = 3,873.90

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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.