Home / 6,930.81-10,389.73-2,547.09

Finding the Fourth Proportional to 6,930.81, 10,389.73 and 2,547.09

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Solution

The fourth proportional to 6,930.81, 10,389.73 and 2,547.09 is: 3,818.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,930.81 : 10,389.73 = 2,547.09 : x
  2. Step 2: Convert to fraction form
    6,930.81/10,389.73 = 2,547.09/x
  3. Step 3: Cross multiply
    6,930.81x = 10,389.73 × 2,547.09
  4. Step 4: Simplify right side
    6,930.81x = 26,463,577.39
  5. Step 5: Solve for x
    x = 26,463,577.39/6,930.81
  6. Step 6: Final answer
    x = 3,818.25

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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.