Home / 6,291.70-8,681.79-3,458.61

Finding the Fourth Proportional to 6,291.70, 8,681.79 and 3,458.61

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Solution

The fourth proportional to 6,291.70, 8,681.79 and 3,458.61 is: 4,772.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291.70 : 8,681.79 = 3,458.61 : x
  2. Step 2: Convert to fraction form
    6,291.70/8,681.79 = 3,458.61/x
  3. Step 3: Cross multiply
    6,291.70x = 8,681.79 × 3,458.61
  4. Step 4: Simplify right side
    6,291.70x = 30,026,904.54
  5. Step 5: Solve for x
    x = 30,026,904.54/6,291.70
  6. Step 6: Final answer
    x = 4,772.46

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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.