Home / 7,079.27-9,769.51-3,935.46

Finding the Fourth Proportional to 7,079.27, 9,769.51 and 3,935.46

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Solution

The fourth proportional to 7,079.27, 9,769.51 and 3,935.46 is: 5,431.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,079.27 : 9,769.51 = 3,935.46 : x
  2. Step 2: Convert to fraction form
    7,079.27/9,769.51 = 3,935.46/x
  3. Step 3: Cross multiply
    7,079.27x = 9,769.51 × 3,935.46
  4. Step 4: Simplify right side
    7,079.27x = 38,447,529.90
  5. Step 5: Solve for x
    x = 38,447,529.90/7,079.27
  6. Step 6: Final answer
    x = 5,431.00

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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.