Home / 7,105.27-9,807.33-4,121.77

Finding the Fourth Proportional to 7,105.27, 9,807.33 and 4,121.77

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Solution

The fourth proportional to 7,105.27, 9,807.33 and 4,121.77 is: 5,689.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,105.27 : 9,807.33 = 4,121.77 : x
  2. Step 2: Convert to fraction form
    7,105.27/9,807.33 = 4,121.77/x
  3. Step 3: Cross multiply
    7,105.27x = 9,807.33 × 4,121.77
  4. Step 4: Simplify right side
    7,105.27x = 40,423,558.57
  5. Step 5: Solve for x
    x = 40,423,558.57/7,105.27
  6. Step 6: Final answer
    x = 5,689.24

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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.