Home / 7,108.77-9,812.06-4,125.56

Finding the Fourth Proportional to 7,108.77, 9,812.06 and 4,125.56

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Solution

The fourth proportional to 7,108.77, 9,812.06 and 4,125.56 is: 5,694.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.77 : 9,812.06 = 4,125.56 : x
  2. Step 2: Convert to fraction form
    7,108.77/9,812.06 = 4,125.56/x
  3. Step 3: Cross multiply
    7,108.77x = 9,812.06 × 4,125.56
  4. Step 4: Simplify right side
    7,108.77x = 40,480,246.16
  5. Step 5: Solve for x
    x = 40,480,246.16/7,108.77
  6. Step 6: Final answer
    x = 5,694.41

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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.