Home / 2,688.84-4,034.38-1,518.98

Finding the Fourth Proportional to 2,688.84, 4,034.38 and 1,518.98

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Solution

The fourth proportional to 2,688.84, 4,034.38 and 1,518.98 is: 2,279.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.84 : 4,034.38 = 1,518.98 : x
  2. Step 2: Convert to fraction form
    2,688.84/4,034.38 = 1,518.98/x
  3. Step 3: Cross multiply
    2,688.84x = 4,034.38 × 1,518.98
  4. Step 4: Simplify right side
    2,688.84x = 6,128,142.53
  5. Step 5: Solve for x
    x = 6,128,142.53/2,688.84
  6. Step 6: Final answer
    x = 2,279.10

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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.