Home / 3,990.03-5,983.93-2,386.13

Finding the Fourth Proportional to 3,990.03, 5,983.93 and 2,386.13

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Solution

The fourth proportional to 3,990.03, 5,983.93 and 2,386.13 is: 3,578.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.03 : 5,983.93 = 2,386.13 : x
  2. Step 2: Convert to fraction form
    3,990.03/5,983.93 = 2,386.13/x
  3. Step 3: Cross multiply
    3,990.03x = 5,983.93 × 2,386.13
  4. Step 4: Simplify right side
    3,990.03x = 14,278,430.39
  5. Step 5: Solve for x
    x = 14,278,430.39/3,990.03
  6. Step 6: Final answer
    x = 3,578.53

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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.