Home / 2,669.36-3,685.91-2,267.06

Finding the Fourth Proportional to 2,669.36, 3,685.91 and 2,267.06

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Solution

The fourth proportional to 2,669.36, 3,685.91 and 2,267.06 is: 3,130.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.36 : 3,685.91 = 2,267.06 : x
  2. Step 2: Convert to fraction form
    2,669.36/3,685.91 = 2,267.06/x
  3. Step 3: Cross multiply
    2,669.36x = 3,685.91 × 2,267.06
  4. Step 4: Simplify right side
    2,669.36x = 8,356,149.36
  5. Step 5: Solve for x
    x = 8,356,149.36/2,669.36
  6. Step 6: Final answer
    x = 3,130.40

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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.