Home / 3,902.77-5,386.67-2,224.45

Finding the Fourth Proportional to 3,902.77, 5,386.67 and 2,224.45

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Solution

The fourth proportional to 3,902.77, 5,386.67 and 2,224.45 is: 3,070.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.77 : 5,386.67 = 2,224.45 : x
  2. Step 2: Convert to fraction form
    3,902.77/5,386.67 = 2,224.45/x
  3. Step 3: Cross multiply
    3,902.77x = 5,386.67 × 2,224.45
  4. Step 4: Simplify right side
    3,902.77x = 11,982,378.08
  5. Step 5: Solve for x
    x = 11,982,378.08/3,902.77
  6. Step 6: Final answer
    x = 3,070.22

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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.