Home / 7,945.16-10,964.40-4,408.72

Finding the Fourth Proportional to 7,945.16, 10,964.40 and 4,408.72

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Solution

The fourth proportional to 7,945.16, 10,964.40 and 4,408.72 is: 6,084.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.16 : 10,964.40 = 4,408.72 : x
  2. Step 2: Convert to fraction form
    7,945.16/10,964.40 = 4,408.72/x
  3. Step 3: Cross multiply
    7,945.16x = 10,964.40 × 4,408.72
  4. Step 4: Simplify right side
    7,945.16x = 48,338,969.57
  5. Step 5: Solve for x
    x = 48,338,969.57/7,945.16
  6. Step 6: Final answer
    x = 6,084.08

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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.