Home / 2,961.40-4,442.10-1,870.60

Finding the Fourth Proportional to 2,961.40, 4,442.10 and 1,870.60

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Solution

The fourth proportional to 2,961.40, 4,442.10 and 1,870.60 is: 2,805.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.40 : 4,442.10 = 1,870.60 : x
  2. Step 2: Convert to fraction form
    2,961.40/4,442.10 = 1,870.60/x
  3. Step 3: Cross multiply
    2,961.40x = 4,442.10 × 1,870.60
  4. Step 4: Simplify right side
    2,961.40x = 8,309,392.26
  5. Step 5: Solve for x
    x = 8,309,392.26/2,961.40
  6. Step 6: Final answer
    x = 2,805.90

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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.