Home / 7,035.36-9,708.35-3,891.54

Finding the Fourth Proportional to 7,035.36, 9,708.35 and 3,891.54

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Solution

The fourth proportional to 7,035.36, 9,708.35 and 3,891.54 is: 5,370.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,035.36 : 9,708.35 = 3,891.54 : x
  2. Step 2: Convert to fraction form
    7,035.36/9,708.35 = 3,891.54/x
  3. Step 3: Cross multiply
    7,035.36x = 9,708.35 × 3,891.54
  4. Step 4: Simplify right side
    7,035.36x = 37,780,432.36
  5. Step 5: Solve for x
    x = 37,780,432.36/7,035.36
  6. Step 6: Final answer
    x = 5,370.08

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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.