Home / 1,911.42-2,637.90-1,126.08

Finding the Fourth Proportional to 1,911.42, 2,637.90 and 1,126.08

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Solution

The fourth proportional to 1,911.42, 2,637.90 and 1,126.08 is: 1,554.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911.42 : 2,637.90 = 1,126.08 : x
  2. Step 2: Convert to fraction form
    1,911.42/2,637.90 = 1,126.08/x
  3. Step 3: Cross multiply
    1,911.42x = 2,637.90 × 1,126.08
  4. Step 4: Simplify right side
    1,911.42x = 2,970,486.43
  5. Step 5: Solve for x
    x = 2,970,486.43/1,911.42
  6. Step 6: Final answer
    x = 1,554.07

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.