Home / 3,681.84-5,521.68-1,084.20

Finding the Fourth Proportional to 3,681.84, 5,521.68 and 1,084.20

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Solution

The fourth proportional to 3,681.84, 5,521.68 and 1,084.20 is: 1,625.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.84 : 5,521.68 = 1,084.20 : x
  2. Step 2: Convert to fraction form
    3,681.84/5,521.68 = 1,084.20/x
  3. Step 3: Cross multiply
    3,681.84x = 5,521.68 × 1,084.20
  4. Step 4: Simplify right side
    3,681.84x = 5,986,605.46
  5. Step 5: Solve for x
    x = 5,986,605.46/3,681.84
  6. Step 6: Final answer
    x = 1,625.98

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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.