Home / 2,547.90-3,821.43-1,086.84

Finding the Fourth Proportional to 2,547.90, 3,821.43 and 1,086.84

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Solution

The fourth proportional to 2,547.90, 3,821.43 and 1,086.84 is: 1,630.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,547.90 : 3,821.43 = 1,086.84 : x
  2. Step 2: Convert to fraction form
    2,547.90/3,821.43 = 1,086.84/x
  3. Step 3: Cross multiply
    2,547.90x = 3,821.43 × 1,086.84
  4. Step 4: Simplify right side
    2,547.90x = 4,153,282.98
  5. Step 5: Solve for x
    x = 4,153,282.98/2,547.90
  6. Step 6: Final answer
    x = 1,630.08

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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.