Home / 7,780.41-10,737.27-4,243.77

Finding the Fourth Proportional to 7,780.41, 10,737.27 and 4,243.77

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Solution

The fourth proportional to 7,780.41, 10,737.27 and 4,243.77 is: 5,856.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.41 : 10,737.27 = 4,243.77 : x
  2. Step 2: Convert to fraction form
    7,780.41/10,737.27 = 4,243.77/x
  3. Step 3: Cross multiply
    7,780.41x = 10,737.27 × 4,243.77
  4. Step 4: Simplify right side
    7,780.41x = 45,566,504.31
  5. Step 5: Solve for x
    x = 45,566,504.31/7,780.41
  6. Step 6: Final answer
    x = 5,856.57

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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.