Home / 7,780.77-10,737.26-4,243.98

Finding the Fourth Proportional to 7,780.77, 10,737.26 and 4,243.98

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Solution

The fourth proportional to 7,780.77, 10,737.26 and 4,243.98 is: 5,856.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.77 : 10,737.26 = 4,243.98 : x
  2. Step 2: Convert to fraction form
    7,780.77/10,737.26 = 4,243.98/x
  3. Step 3: Cross multiply
    7,780.77x = 10,737.26 × 4,243.98
  4. Step 4: Simplify right side
    7,780.77x = 45,568,695.47
  5. Step 5: Solve for x
    x = 45,568,695.47/7,780.77
  6. Step 6: Final answer
    x = 5,856.58

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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.