Home / 7,747.70-10,691.48-4,210.82

Finding the Fourth Proportional to 7,747.70, 10,691.48 and 4,210.82

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Solution

The fourth proportional to 7,747.70, 10,691.48 and 4,210.82 is: 5,810.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.70 : 10,691.48 = 4,210.82 : x
  2. Step 2: Convert to fraction form
    7,747.70/10,691.48 = 4,210.82/x
  3. Step 3: Cross multiply
    7,747.70x = 10,691.48 × 4,210.82
  4. Step 4: Simplify right side
    7,747.70x = 45,019,897.81
  5. Step 5: Solve for x
    x = 45,019,897.81/7,747.70
  6. Step 6: Final answer
    x = 5,810.74

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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.