Home / 3,222.61-4,835.07-1,988.58

Finding the Fourth Proportional to 3,222.61, 4,835.07 and 1,988.58

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Solution

The fourth proportional to 3,222.61, 4,835.07 and 1,988.58 is: 2,983.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,222.61 : 4,835.07 = 1,988.58 : x
  2. Step 2: Convert to fraction form
    3,222.61/4,835.07 = 1,988.58/x
  3. Step 3: Cross multiply
    3,222.61x = 4,835.07 × 1,988.58
  4. Step 4: Simplify right side
    3,222.61x = 9,614,934.17
  5. Step 5: Solve for x
    x = 9,614,934.17/3,222.61
  6. Step 6: Final answer
    x = 2,983.58

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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.