Home / 6,903.39-9,528.36-3,920.97

Finding the Fourth Proportional to 6,903.39, 9,528.36 and 3,920.97

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Solution

The fourth proportional to 6,903.39, 9,528.36 and 3,920.97 is: 5,411.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,903.39 : 9,528.36 = 3,920.97 : x
  2. Step 2: Convert to fraction form
    6,903.39/9,528.36 = 3,920.97/x
  3. Step 3: Cross multiply
    6,903.39x = 9,528.36 × 3,920.97
  4. Step 4: Simplify right side
    6,903.39x = 37,360,413.71
  5. Step 5: Solve for x
    x = 37,360,413.71/6,903.39
  6. Step 6: Final answer
    x = 5,411.89

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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.