Home / 7,119.56-10,681.81-3,173.61

Finding the Fourth Proportional to 7,119.56, 10,681.81 and 3,173.61

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Solution

The fourth proportional to 7,119.56, 10,681.81 and 3,173.61 is: 4,761.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.56 : 10,681.81 = 3,173.61 : x
  2. Step 2: Convert to fraction form
    7,119.56/10,681.81 = 3,173.61/x
  3. Step 3: Cross multiply
    7,119.56x = 10,681.81 × 3,173.61
  4. Step 4: Simplify right side
    7,119.56x = 33,899,931.16
  5. Step 5: Solve for x
    x = 33,899,931.16/7,119.56
  6. Step 6: Final answer
    x = 4,761.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.