Home / 7,381.50-10,186.47-4,238.70

Finding the Fourth Proportional to 7,381.50, 10,186.47 and 4,238.70

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Solution

The fourth proportional to 7,381.50, 10,186.47 and 4,238.70 is: 5,849.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381.50 : 10,186.47 = 4,238.70 : x
  2. Step 2: Convert to fraction form
    7,381.50/10,186.47 = 4,238.70/x
  3. Step 3: Cross multiply
    7,381.50x = 10,186.47 × 4,238.70
  4. Step 4: Simplify right side
    7,381.50x = 43,177,390.39
  5. Step 5: Solve for x
    x = 43,177,390.39/7,381.50
  6. Step 6: Final answer
    x = 5,849.41

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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.