Home / 7,139.48-10,708.36-1,944.96

Finding the Fourth Proportional to 7,139.48, 10,708.36 and 1,944.96

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Solution

The fourth proportional to 7,139.48, 10,708.36 and 1,944.96 is: 2,917.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139.48 : 10,708.36 = 1,944.96 : x
  2. Step 2: Convert to fraction form
    7,139.48/10,708.36 = 1,944.96/x
  3. Step 3: Cross multiply
    7,139.48x = 10,708.36 × 1,944.96
  4. Step 4: Simplify right side
    7,139.48x = 20,827,331.87
  5. Step 5: Solve for x
    x = 20,827,331.87/7,139.48
  6. Step 6: Final answer
    x = 2,917.21

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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.