Home / 3,393.36-5,088.46-1,988.20

Finding the Fourth Proportional to 3,393.36, 5,088.46 and 1,988.20

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Solution

The fourth proportional to 3,393.36, 5,088.46 and 1,988.20 is: 2,981.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.36 : 5,088.46 = 1,988.20 : x
  2. Step 2: Convert to fraction form
    3,393.36/5,088.46 = 1,988.20/x
  3. Step 3: Cross multiply
    3,393.36x = 5,088.46 × 1,988.20
  4. Step 4: Simplify right side
    3,393.36x = 10,116,876.17
  5. Step 5: Solve for x
    x = 10,116,876.17/3,393.36
  6. Step 6: Final answer
    x = 2,981.37

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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.