Home / 5,412.01-8,114.73-2,121.16

Finding the Fourth Proportional to 5,412.01, 8,114.73 and 2,121.16

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Solution

The fourth proportional to 5,412.01, 8,114.73 and 2,121.16 is: 3,180.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.01 : 8,114.73 = 2,121.16 : x
  2. Step 2: Convert to fraction form
    5,412.01/8,114.73 = 2,121.16/x
  3. Step 3: Cross multiply
    5,412.01x = 8,114.73 × 2,121.16
  4. Step 4: Simplify right side
    5,412.01x = 17,212,640.69
  5. Step 5: Solve for x
    x = 17,212,640.69/5,412.01
  6. Step 6: Final answer
    x = 3,180.45

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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.