Home / 6,320.47-8,722.80-3,488.11

Finding the Fourth Proportional to 6,320.47, 8,722.80 and 3,488.11

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Solution

The fourth proportional to 6,320.47, 8,722.80 and 3,488.11 is: 4,813.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,320.47 : 8,722.80 = 3,488.11 : x
  2. Step 2: Convert to fraction form
    6,320.47/8,722.80 = 3,488.11/x
  3. Step 3: Cross multiply
    6,320.47x = 8,722.80 × 3,488.11
  4. Step 4: Simplify right side
    6,320.47x = 30,426,085.91
  5. Step 5: Solve for x
    x = 30,426,085.91/6,320.47
  6. Step 6: Final answer
    x = 4,813.90

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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.