Home / 6,315.06-9,470.31-1,871.40

Finding the Fourth Proportional to 6,315.06, 9,470.31 and 1,871.40

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Solution

The fourth proportional to 6,315.06, 9,470.31 and 1,871.40 is: 2,806.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,315.06 : 9,470.31 = 1,871.40 : x
  2. Step 2: Convert to fraction form
    6,315.06/9,470.31 = 1,871.40/x
  3. Step 3: Cross multiply
    6,315.06x = 9,470.31 × 1,871.40
  4. Step 4: Simplify right side
    6,315.06x = 17,722,738.13
  5. Step 5: Solve for x
    x = 17,722,738.13/6,315.06
  6. Step 6: Final answer
    x = 2,806.42

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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.