Home / 4,209.81-6,312.66-1,577.71

Finding the Fourth Proportional to 4,209.81, 6,312.66 and 1,577.71

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Solution

The fourth proportional to 4,209.81, 6,312.66 and 1,577.71 is: 2,365.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,209.81 : 6,312.66 = 1,577.71 : x
  2. Step 2: Convert to fraction form
    4,209.81/6,312.66 = 1,577.71/x
  3. Step 3: Cross multiply
    4,209.81x = 6,312.66 × 1,577.71
  4. Step 4: Simplify right side
    4,209.81x = 9,959,546.81
  5. Step 5: Solve for x
    x = 9,959,546.81/4,209.81
  6. Step 6: Final answer
    x = 2,365.79

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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.