Home / 1,518.16-2,277.50-628.68

Finding the Fourth Proportional to 1,518.16, 2,277.50 and 628.68

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Solution

The fourth proportional to 1,518.16, 2,277.50 and 628.68 is: 943.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.16 : 2,277.50 = 628.68 : x
  2. Step 2: Convert to fraction form
    1,518.16/2,277.50 = 628.68/x
  3. Step 3: Cross multiply
    1,518.16x = 2,277.50 × 628.68
  4. Step 4: Simplify right side
    1,518.16x = 1,431,820.27
  5. Step 5: Solve for x
    x = 1,431,820.27/1,518.16
  6. Step 6: Final answer
    x = 943.13

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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.