Home / 6,427.60-9,641.40-2,918.84

Finding the Fourth Proportional to 6,427.60, 9,641.40 and 2,918.84

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Solution

The fourth proportional to 6,427.60, 9,641.40 and 2,918.84 is: 4,378.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,427.60 : 9,641.40 = 2,918.84 : x
  2. Step 2: Convert to fraction form
    6,427.60/9,641.40 = 2,918.84/x
  3. Step 3: Cross multiply
    6,427.60x = 9,641.40 × 2,918.84
  4. Step 4: Simplify right side
    6,427.60x = 28,141,669.45
  5. Step 5: Solve for x
    x = 28,141,669.45/6,427.60
  6. Step 6: Final answer
    x = 4,378.25

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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.