Home / 4,917.60-7,378.20-2,318.58

Finding the Fourth Proportional to 4,917.60, 7,378.20 and 2,318.58

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Solution

The fourth proportional to 4,917.60, 7,378.20 and 2,318.58 is: 3,478.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.60 : 7,378.20 = 2,318.58 : x
  2. Step 2: Convert to fraction form
    4,917.60/7,378.20 = 2,318.58/x
  3. Step 3: Cross multiply
    4,917.60x = 7,378.20 × 2,318.58
  4. Step 4: Simplify right side
    4,917.60x = 17,106,946.96
  5. Step 5: Solve for x
    x = 17,106,946.96/4,917.60
  6. Step 6: Final answer
    x = 3,478.72

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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.