Home / 2,807.29-4,211.93-1,247.15

Finding the Fourth Proportional to 2,807.29, 4,211.93 and 1,247.15

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Solution

The fourth proportional to 2,807.29, 4,211.93 and 1,247.15 is: 1,871.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807.29 : 4,211.93 = 1,247.15 : x
  2. Step 2: Convert to fraction form
    2,807.29/4,211.93 = 1,247.15/x
  3. Step 3: Cross multiply
    2,807.29x = 4,211.93 × 1,247.15
  4. Step 4: Simplify right side
    2,807.29x = 5,252,912.79
  5. Step 5: Solve for x
    x = 5,252,912.79/2,807.29
  6. Step 6: Final answer
    x = 1,871.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.