Home / 3,887.63-5,364.98-2,209.07

Finding the Fourth Proportional to 3,887.63, 5,364.98 and 2,209.07

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Solution

The fourth proportional to 3,887.63, 5,364.98 and 2,209.07 is: 3,048.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.63 : 5,364.98 = 2,209.07 : x
  2. Step 2: Convert to fraction form
    3,887.63/5,364.98 = 2,209.07/x
  3. Step 3: Cross multiply
    3,887.63x = 5,364.98 × 2,209.07
  4. Step 4: Simplify right side
    3,887.63x = 11,851,639.45
  5. Step 5: Solve for x
    x = 11,851,639.45/3,887.63
  6. Step 6: Final answer
    x = 3,048.55

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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.