Home / 7,320.24-10,104.21-4,178.52

Finding the Fourth Proportional to 7,320.24, 10,104.21 and 4,178.52

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Solution

The fourth proportional to 7,320.24, 10,104.21 and 4,178.52 is: 5,767.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.24 : 10,104.21 = 4,178.52 : x
  2. Step 2: Convert to fraction form
    7,320.24/10,104.21 = 4,178.52/x
  3. Step 3: Cross multiply
    7,320.24x = 10,104.21 × 4,178.52
  4. Step 4: Simplify right side
    7,320.24x = 42,220,643.57
  5. Step 5: Solve for x
    x = 42,220,643.57/7,320.24
  6. Step 6: Final answer
    x = 5,767.66

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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.