Home / 5,430.02-8,144.07-2,144.09

Finding the Fourth Proportional to 5,430.02, 8,144.07 and 2,144.09

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Solution

The fourth proportional to 5,430.02, 8,144.07 and 2,144.09 is: 3,215.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.02 : 8,144.07 = 2,144.09 : x
  2. Step 2: Convert to fraction form
    5,430.02/8,144.07 = 2,144.09/x
  3. Step 3: Cross multiply
    5,430.02x = 8,144.07 × 2,144.09
  4. Step 4: Simplify right side
    5,430.02x = 17,461,619.05
  5. Step 5: Solve for x
    x = 17,461,619.05/5,430.02
  6. Step 6: Final answer
    x = 3,215.76

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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.