Home / 3,212.98-4,824.70-1,988.19

Finding the Fourth Proportional to 3,212.98, 4,824.70 and 1,988.19

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Solution

The fourth proportional to 3,212.98, 4,824.70 and 1,988.19 is: 2,985.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.98 : 4,824.70 = 1,988.19 : x
  2. Step 2: Convert to fraction form
    3,212.98/4,824.70 = 1,988.19/x
  3. Step 3: Cross multiply
    3,212.98x = 4,824.70 × 1,988.19
  4. Step 4: Simplify right side
    3,212.98x = 9,592,437.33
  5. Step 5: Solve for x
    x = 9,592,437.33/3,212.98
  6. Step 6: Final answer
    x = 2,985.53

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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.