Home / 3,880.34-5,355.02-2,224.66

Finding the Fourth Proportional to 3,880.34, 5,355.02 and 2,224.66

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Solution

The fourth proportional to 3,880.34, 5,355.02 and 2,224.66 is: 3,070.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.34 : 5,355.02 = 2,224.66 : x
  2. Step 2: Convert to fraction form
    3,880.34/5,355.02 = 2,224.66/x
  3. Step 3: Cross multiply
    3,880.34x = 5,355.02 × 2,224.66
  4. Step 4: Simplify right side
    3,880.34x = 11,913,098.79
  5. Step 5: Solve for x
    x = 11,913,098.79/3,880.34
  6. Step 6: Final answer
    x = 3,070.12

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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.