Home / 1,471.75-2,207.63-1,386.14

Finding the Fourth Proportional to 1,471.75, 2,207.63 and 1,386.14

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Solution

The fourth proportional to 1,471.75, 2,207.63 and 1,386.14 is: 2,079.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,471.75 : 2,207.63 = 1,386.14 : x
  2. Step 2: Convert to fraction form
    1,471.75/2,207.63 = 1,386.14/x
  3. Step 3: Cross multiply
    1,471.75x = 2,207.63 × 1,386.14
  4. Step 4: Simplify right side
    1,471.75x = 3,060,076.68
  5. Step 5: Solve for x
    x = 3,060,076.68/1,471.75
  6. Step 6: Final answer
    x = 2,079.21

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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.