Home / 3,988.01-5,503.37-2,309.49

Finding the Fourth Proportional to 3,988.01, 5,503.37 and 2,309.49

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Solution

The fourth proportional to 3,988.01, 5,503.37 and 2,309.49 is: 3,187.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.01 : 5,503.37 = 2,309.49 : x
  2. Step 2: Convert to fraction form
    3,988.01/5,503.37 = 2,309.49/x
  3. Step 3: Cross multiply
    3,988.01x = 5,503.37 × 2,309.49
  4. Step 4: Simplify right side
    3,988.01x = 12,709,977.98
  5. Step 5: Solve for x
    x = 12,709,977.98/3,988.01
  6. Step 6: Final answer
    x = 3,187.05

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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.