Home / 7,317.60-10,979.10-2,387.40

Finding the Fourth Proportional to 7,317.60, 10,979.10 and 2,387.40

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Solution

The fourth proportional to 7,317.60, 10,979.10 and 2,387.40 is: 3,581.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,317.60 : 10,979.10 = 2,387.40 : x
  2. Step 2: Convert to fraction form
    7,317.60/10,979.10 = 2,387.40/x
  3. Step 3: Cross multiply
    7,317.60x = 10,979.10 × 2,387.40
  4. Step 4: Simplify right side
    7,317.60x = 26,211,503.34
  5. Step 5: Solve for x
    x = 26,211,503.34/7,317.60
  6. Step 6: Final answer
    x = 3,581.98

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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.