Home / 2,712.21-3,764.80-2,646.60

Finding the Fourth Proportional to 2,712.21, 3,764.80 and 2,646.60

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Solution

The fourth proportional to 2,712.21, 3,764.80 and 2,646.60 is: 3,673.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.21 : 3,764.80 = 2,646.60 : x
  2. Step 2: Convert to fraction form
    2,712.21/3,764.80 = 2,646.60/x
  3. Step 3: Cross multiply
    2,712.21x = 3,764.80 × 2,646.60
  4. Step 4: Simplify right side
    2,712.21x = 9,963,913.06
  5. Step 5: Solve for x
    x = 9,963,913.06/2,712.21
  6. Step 6: Final answer
    x = 3,673.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.