Home / 5,165.07-7,127.67-2,807.16

Finding the Fourth Proportional to 5,165.07, 7,127.67 and 2,807.16

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Solution

The fourth proportional to 5,165.07, 7,127.67 and 2,807.16 is: 3,873.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,165.07 : 7,127.67 = 2,807.16 : x
  2. Step 2: Convert to fraction form
    5,165.07/7,127.67 = 2,807.16/x
  3. Step 3: Cross multiply
    5,165.07x = 7,127.67 × 2,807.16
  4. Step 4: Simplify right side
    5,165.07x = 20,008,510.12
  5. Step 5: Solve for x
    x = 20,008,510.12/5,165.07
  6. Step 6: Final answer
    x = 3,873.81

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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.