Home / 1,281.15-1,923.35-1,008.18

Finding the Fourth Proportional to 1,281.15, 1,923.35 and 1,008.18

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Solution

The fourth proportional to 1,281.15, 1,923.35 and 1,008.18 is: 1,513.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281.15 : 1,923.35 = 1,008.18 : x
  2. Step 2: Convert to fraction form
    1,281.15/1,923.35 = 1,008.18/x
  3. Step 3: Cross multiply
    1,281.15x = 1,923.35 × 1,008.18
  4. Step 4: Simplify right side
    1,281.15x = 1,939,077.96
  5. Step 5: Solve for x
    x = 1,939,077.96/1,281.15
  6. Step 6: Final answer
    x = 1,513.54

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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.