Home / 6,930.78-10,397.19-2,547.89

Finding the Fourth Proportional to 6,930.78, 10,397.19 and 2,547.89

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Solution

The fourth proportional to 6,930.78, 10,397.19 and 2,547.89 is: 3,822.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,930.78 : 10,397.19 = 2,547.89 : x
  2. Step 2: Convert to fraction form
    6,930.78/10,397.19 = 2,547.89/x
  3. Step 3: Cross multiply
    6,930.78x = 10,397.19 × 2,547.89
  4. Step 4: Simplify right side
    6,930.78x = 26,490,896.43
  5. Step 5: Solve for x
    x = 26,490,896.43/6,930.78
  6. Step 6: Final answer
    x = 3,822.21

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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.