Home / 1,518.15-2,277.41-543.99

Finding the Fourth Proportional to 1,518.15, 2,277.41 and 543.99

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Solution

The fourth proportional to 1,518.15, 2,277.41 and 543.99 is: 816.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.15 : 2,277.41 = 543.99 : x
  2. Step 2: Convert to fraction form
    1,518.15/2,277.41 = 543.99/x
  3. Step 3: Cross multiply
    1,518.15x = 2,277.41 × 543.99
  4. Step 4: Simplify right side
    1,518.15x = 1,238,885.55
  5. Step 5: Solve for x
    x = 1,238,885.55/1,518.15
  6. Step 6: Final answer
    x = 816.05

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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.