Home / 7,010.92-9,674.36-4,139.20

Finding the Fourth Proportional to 7,010.92, 9,674.36 and 4,139.20

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Solution

The fourth proportional to 7,010.92, 9,674.36 and 4,139.20 is: 5,711.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,010.92 : 9,674.36 = 4,139.20 : x
  2. Step 2: Convert to fraction form
    7,010.92/9,674.36 = 4,139.20/x
  3. Step 3: Cross multiply
    7,010.92x = 9,674.36 × 4,139.20
  4. Step 4: Simplify right side
    7,010.92x = 40,044,062.54
  5. Step 5: Solve for x
    x = 40,044,062.54/7,010.92
  6. Step 6: Final answer
    x = 5,711.67

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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.