Home / 7,747.56-10,691.42-4,210.77

Finding the Fourth Proportional to 7,747.56, 10,691.42 and 4,210.77

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Solution

The fourth proportional to 7,747.56, 10,691.42 and 4,210.77 is: 5,810.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.56 : 10,691.42 = 4,210.77 : x
  2. Step 2: Convert to fraction form
    7,747.56/10,691.42 = 4,210.77/x
  3. Step 3: Cross multiply
    7,747.56x = 10,691.42 × 4,210.77
  4. Step 4: Simplify right side
    7,747.56x = 45,019,089.54
  5. Step 5: Solve for x
    x = 45,019,089.54/7,747.56
  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.