Home / 3,397.14-5,091.59-1,547.78

Finding the Fourth Proportional to 3,397.14, 5,091.59 and 1,547.78

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Solution

The fourth proportional to 3,397.14, 5,091.59 and 1,547.78 is: 2,319.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,397.14 : 5,091.59 = 1,547.78 : x
  2. Step 2: Convert to fraction form
    3,397.14/5,091.59 = 1,547.78/x
  3. Step 3: Cross multiply
    3,397.14x = 5,091.59 × 1,547.78
  4. Step 4: Simplify right side
    3,397.14x = 7,880,639.58
  5. Step 5: Solve for x
    x = 7,880,639.58/3,397.14
  6. Step 6: Final answer
    x = 2,319.79

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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.