Home / 5,681.84-8,515.50-3,218.04

Finding the Fourth Proportional to 5,681.84, 8,515.50 and 3,218.04

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Solution

The fourth proportional to 5,681.84, 8,515.50 and 3,218.04 is: 4,822.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,681.84 : 8,515.50 = 3,218.04 : x
  2. Step 2: Convert to fraction form
    5,681.84/8,515.50 = 3,218.04/x
  3. Step 3: Cross multiply
    5,681.84x = 8,515.50 × 3,218.04
  4. Step 4: Simplify right side
    5,681.84x = 27,403,219.62
  5. Step 5: Solve for x
    x = 27,403,219.62/5,681.84
  6. Step 6: Final answer
    x = 4,822.95

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1.5x scale

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.