Home / 5,233.21-7,221.90-2,875.39

Finding the Fourth Proportional to 5,233.21, 7,221.90 and 2,875.39

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Solution

The fourth proportional to 5,233.21, 7,221.90 and 2,875.39 is: 3,968.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,233.21 : 7,221.90 = 2,875.39 : x
  2. Step 2: Convert to fraction form
    5,233.21/7,221.90 = 2,875.39/x
  3. Step 3: Cross multiply
    5,233.21x = 7,221.90 × 2,875.39
  4. Step 4: Simplify right side
    5,233.21x = 20,765,779.04
  5. Step 5: Solve for x
    x = 20,765,779.04/5,233.21
  6. Step 6: Final answer
    x = 3,968.08

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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.