Home / 2,547.11-3,821.64-1,313.74

Finding the Fourth Proportional to 2,547.11, 3,821.64 and 1,313.74

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Solution

The fourth proportional to 2,547.11, 3,821.64 and 1,313.74 is: 1,971.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,547.11 : 3,821.64 = 1,313.74 : x
  2. Step 2: Convert to fraction form
    2,547.11/3,821.64 = 1,313.74/x
  3. Step 3: Cross multiply
    2,547.11x = 3,821.64 × 1,313.74
  4. Step 4: Simplify right side
    2,547.11x = 5,020,641.33
  5. Step 5: Solve for x
    x = 5,020,641.33/2,547.11
  6. Step 6: Final answer
    x = 1,971.11

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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.