Home / 3,988.00-5,503.49-2,195.69

Finding the Fourth Proportional to 3,988.00, 5,503.49 and 2,195.69

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Solution

The fourth proportional to 3,988.00, 5,503.49 and 2,195.69 is: 3,030.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.00 : 5,503.49 = 2,195.69 : x
  2. Step 2: Convert to fraction form
    3,988.00/5,503.49 = 2,195.69/x
  3. Step 3: Cross multiply
    3,988.00x = 5,503.49 × 2,195.69
  4. Step 4: Simplify right side
    3,988.00x = 12,083,981.32
  5. Step 5: Solve for x
    x = 12,083,981.32/3,988.00
  6. Step 6: Final answer
    x = 3,030.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.