Home / 1,909.84-2,862.96-1,088.56

Finding the Fourth Proportional to 1,909.84, 2,862.96 and 1,088.56

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Solution

The fourth proportional to 1,909.84, 2,862.96 and 1,088.56 is: 1,631.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909.84 : 2,862.96 = 1,088.56 : x
  2. Step 2: Convert to fraction form
    1,909.84/2,862.96 = 1,088.56/x
  3. Step 3: Cross multiply
    1,909.84x = 2,862.96 × 1,088.56
  4. Step 4: Simplify right side
    1,909.84x = 3,116,503.74
  5. Step 5: Solve for x
    x = 3,116,503.74/1,909.84
  6. Step 6: Final answer
    x = 1,631.81

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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.