Home / 4,316.60-6,478.68-1,721.36

Finding the Fourth Proportional to 4,316.60, 6,478.68 and 1,721.36

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Solution

The fourth proportional to 4,316.60, 6,478.68 and 1,721.36 is: 2,583.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,316.60 : 6,478.68 = 1,721.36 : x
  2. Step 2: Convert to fraction form
    4,316.60/6,478.68 = 1,721.36/x
  3. Step 3: Cross multiply
    4,316.60x = 6,478.68 × 1,721.36
  4. Step 4: Simplify right side
    4,316.60x = 11,152,140.60
  5. Step 5: Solve for x
    x = 11,152,140.60/4,316.60
  6. Step 6: Final answer
    x = 2,583.55

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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.