Home / 7,042.23-9,718.27-3,898.44

Finding the Fourth Proportional to 7,042.23, 9,718.27 and 3,898.44

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Solution

The fourth proportional to 7,042.23, 9,718.27 and 3,898.44 is: 5,379.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,042.23 : 9,718.27 = 3,898.44 : x
  2. Step 2: Convert to fraction form
    7,042.23/9,718.27 = 3,898.44/x
  3. Step 3: Cross multiply
    7,042.23x = 9,718.27 × 3,898.44
  4. Step 4: Simplify right side
    7,042.23x = 37,886,082.75
  5. Step 5: Solve for x
    x = 37,886,082.75/7,042.23
  6. Step 6: Final answer
    x = 5,379.84

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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.