Home / 4,679.04-6,456.80-2,689.36

Finding the Fourth Proportional to 4,679.04, 6,456.80 and 2,689.36

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Solution

The fourth proportional to 4,679.04, 6,456.80 and 2,689.36 is: 3,711.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679.04 : 6,456.80 = 2,689.36 : x
  2. Step 2: Convert to fraction form
    4,679.04/6,456.80 = 2,689.36/x
  3. Step 3: Cross multiply
    4,679.04x = 6,456.80 × 2,689.36
  4. Step 4: Simplify right side
    4,679.04x = 17,364,659.65
  5. Step 5: Solve for x
    x = 17,364,659.65/4,679.04
  6. Step 6: Final answer
    x = 3,711.16

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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.