Home / 2,379.60-3,283.94-1,317.50

Finding the Fourth Proportional to 2,379.60, 3,283.94 and 1,317.50

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Solution

The fourth proportional to 2,379.60, 3,283.94 and 1,317.50 is: 1,818.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.60 : 3,283.94 = 1,317.50 : x
  2. Step 2: Convert to fraction form
    2,379.60/3,283.94 = 1,317.50/x
  3. Step 3: Cross multiply
    2,379.60x = 3,283.94 × 1,317.50
  4. Step 4: Simplify right side
    2,379.60x = 4,326,590.95
  5. Step 5: Solve for x
    x = 4,326,590.95/2,379.60
  6. Step 6: Final answer
    x = 1,818.20

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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.