Home / 7,121.16-9,830.52-4,764.84

Finding the Fourth Proportional to 7,121.16, 9,830.52 and 4,764.84

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Solution

The fourth proportional to 7,121.16, 9,830.52 and 4,764.84 is: 6,577.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.16 : 9,830.52 = 4,764.84 : x
  2. Step 2: Convert to fraction form
    7,121.16/9,830.52 = 4,764.84/x
  3. Step 3: Cross multiply
    7,121.16x = 9,830.52 × 4,764.84
  4. Step 4: Simplify right side
    7,121.16x = 46,840,854.92
  5. Step 5: Solve for x
    x = 46,840,854.92/7,121.16
  6. Step 6: Final answer
    x = 6,577.70

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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.