Home / 7,177.12-9,903.81-4,192.59

Finding the Fourth Proportional to 7,177.12, 9,903.81 and 4,192.59

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Solution

The fourth proportional to 7,177.12, 9,903.81 and 4,192.59 is: 5,785.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,177.12 : 9,903.81 = 4,192.59 : x
  2. Step 2: Convert to fraction form
    7,177.12/9,903.81 = 4,192.59/x
  3. Step 3: Cross multiply
    7,177.12x = 9,903.81 × 4,192.59
  4. Step 4: Simplify right side
    7,177.12x = 41,522,614.77
  5. Step 5: Solve for x
    x = 41,522,614.77/7,177.12
  6. Step 6: Final answer
    x = 5,785.41

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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.