Home / 3,487.08-5,231.34-1,147.26

Finding the Fourth Proportional to 3,487.08, 5,231.34 and 1,147.26

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Solution

The fourth proportional to 3,487.08, 5,231.34 and 1,147.26 is: 1,721.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.08 : 5,231.34 = 1,147.26 : x
  2. Step 2: Convert to fraction form
    3,487.08/5,231.34 = 1,147.26/x
  3. Step 3: Cross multiply
    3,487.08x = 5,231.34 × 1,147.26
  4. Step 4: Simplify right side
    3,487.08x = 6,001,707.13
  5. Step 5: Solve for x
    x = 6,001,707.13/3,487.08
  6. Step 6: Final answer
    x = 1,721.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.