Home / 7,848.38-10,830.72-4,311.51

Finding the Fourth Proportional to 7,848.38, 10,830.72 and 4,311.51

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Solution

The fourth proportional to 7,848.38, 10,830.72 and 4,311.51 is: 5,949.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,848.38 : 10,830.72 = 4,311.51 : x
  2. Step 2: Convert to fraction form
    7,848.38/10,830.72 = 4,311.51/x
  3. Step 3: Cross multiply
    7,848.38x = 10,830.72 × 4,311.51
  4. Step 4: Simplify right side
    7,848.38x = 46,696,790.12
  5. Step 5: Solve for x
    x = 46,696,790.12/7,848.38
  6. Step 6: Final answer
    x = 5,949.86

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1.5x scale

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.