Home / 4,378.78-6,564.08-1,604.71

Finding the Fourth Proportional to 4,378.78, 6,564.08 and 1,604.71

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Solution

The fourth proportional to 4,378.78, 6,564.08 and 1,604.71 is: 2,405.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.78 : 6,564.08 = 1,604.71 : x
  2. Step 2: Convert to fraction form
    4,378.78/6,564.08 = 1,604.71/x
  3. Step 3: Cross multiply
    4,378.78x = 6,564.08 × 1,604.71
  4. Step 4: Simplify right side
    4,378.78x = 10,533,445.75
  5. Step 5: Solve for x
    x = 10,533,445.75/4,378.78
  6. Step 6: Final answer
    x = 2,405.56

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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.