Home / 4,425.93-6,638.85-1,139.01

Finding the Fourth Proportional to 4,425.93, 6,638.85 and 1,139.01

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Solution

The fourth proportional to 4,425.93, 6,638.85 and 1,139.01 is: 1,708.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,425.93 : 6,638.85 = 1,139.01 : x
  2. Step 2: Convert to fraction form
    4,425.93/6,638.85 = 1,139.01/x
  3. Step 3: Cross multiply
    4,425.93x = 6,638.85 × 1,139.01
  4. Step 4: Simplify right side
    4,425.93x = 7,561,716.54
  5. Step 5: Solve for x
    x = 7,561,716.54/4,425.93
  6. Step 6: Final answer
    x = 1,708.50

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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.