Home / 2,547.56-3,821.34-1,392.68

Finding the Fourth Proportional to 2,547.56, 3,821.34 and 1,392.68

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Solution

The fourth proportional to 2,547.56, 3,821.34 and 1,392.68 is: 2,089.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,547.56 : 3,821.34 = 1,392.68 : x
  2. Step 2: Convert to fraction form
    2,547.56/3,821.34 = 1,392.68/x
  3. Step 3: Cross multiply
    2,547.56x = 3,821.34 × 1,392.68
  4. Step 4: Simplify right side
    2,547.56x = 5,321,903.79
  5. Step 5: Solve for x
    x = 5,321,903.79/2,547.56
  6. Step 6: Final answer
    x = 2,089.02

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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.