Home / 5,139.07-7,708.65-1,441.60

Finding the Fourth Proportional to 5,139.07, 7,708.65 and 1,441.60

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Solution

The fourth proportional to 5,139.07, 7,708.65 and 1,441.60 is: 2,162.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.07 : 7,708.65 = 1,441.60 : x
  2. Step 2: Convert to fraction form
    5,139.07/7,708.65 = 1,441.60/x
  3. Step 3: Cross multiply
    5,139.07x = 7,708.65 × 1,441.60
  4. Step 4: Simplify right side
    5,139.07x = 11,112,789.84
  5. Step 5: Solve for x
    x = 11,112,789.84/5,139.07
  6. Step 6: Final answer
    x = 2,162.41

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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.