Home / 5,232.81-7,221.39-2,875.05

Finding the Fourth Proportional to 5,232.81, 7,221.39 and 2,875.05

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Solution

The fourth proportional to 5,232.81, 7,221.39 and 2,875.05 is: 3,967.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,232.81 : 7,221.39 = 2,875.05 : x
  2. Step 2: Convert to fraction form
    5,232.81/7,221.39 = 2,875.05/x
  3. Step 3: Cross multiply
    5,232.81x = 7,221.39 × 2,875.05
  4. Step 4: Simplify right side
    5,232.81x = 20,761,857.32
  5. Step 5: Solve for x
    x = 20,761,857.32/5,232.81
  6. Step 6: Final answer
    x = 3,967.63

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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.