Home / 1,911.55-2,867.35-524.90

Finding the Fourth Proportional to 1,911.55, 2,867.35 and 524.90

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Solution

The fourth proportional to 1,911.55, 2,867.35 and 524.90 is: 787.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911.55 : 2,867.35 = 524.90 : x
  2. Step 2: Convert to fraction form
    1,911.55/2,867.35 = 524.90/x
  3. Step 3: Cross multiply
    1,911.55x = 2,867.35 × 524.90
  4. Step 4: Simplify right side
    1,911.55x = 1,505,062.73
  5. Step 5: Solve for x
    x = 1,505,062.73/1,911.55
  6. Step 6: Final answer
    x = 787.35

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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.