Home / 6,986.40-9,641.69-4,335.58

Finding the Fourth Proportional to 6,986.40, 9,641.69 and 4,335.58

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Solution

The fourth proportional to 6,986.40, 9,641.69 and 4,335.58 is: 5,983.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,986.40 : 9,641.69 = 4,335.58 : x
  2. Step 2: Convert to fraction form
    6,986.40/9,641.69 = 4,335.58/x
  3. Step 3: Cross multiply
    6,986.40x = 9,641.69 × 4,335.58
  4. Step 4: Simplify right side
    6,986.40x = 41,802,318.33
  5. Step 5: Solve for x
    x = 41,802,318.33/6,986.40
  6. Step 6: Final answer
    x = 5,983.38

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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.