Home / 3,901.35-5,384.93-2,223.63

Finding the Fourth Proportional to 3,901.35, 5,384.93 and 2,223.63

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Solution

The fourth proportional to 3,901.35, 5,384.93 and 2,223.63 is: 3,069.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.35 : 5,384.93 = 2,223.63 : x
  2. Step 2: Convert to fraction form
    3,901.35/5,384.93 = 2,223.63/x
  3. Step 3: Cross multiply
    3,901.35x = 5,384.93 × 2,223.63
  4. Step 4: Simplify right side
    3,901.35x = 11,974,080.78
  5. Step 5: Solve for x
    x = 11,974,080.78/3,901.35
  6. Step 6: Final answer
    x = 3,069.21

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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.