Home / 4,319.30-6,478.71-1,199.40

Finding the Fourth Proportional to 4,319.30, 6,478.71 and 1,199.40

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Solution

The fourth proportional to 4,319.30, 6,478.71 and 1,199.40 is: 1,799.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,319.30 : 6,478.71 = 1,199.40 : x
  2. Step 2: Convert to fraction form
    4,319.30/6,478.71 = 1,199.40/x
  3. Step 3: Cross multiply
    4,319.30x = 6,478.71 × 1,199.40
  4. Step 4: Simplify right side
    4,319.30x = 7,770,564.77
  5. Step 5: Solve for x
    x = 7,770,564.77/4,319.30
  6. Step 6: Final answer
    x = 1,799.04

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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.