Home / 5,430.16-8,134.46-3,090.74

Finding the Fourth Proportional to 5,430.16, 8,134.46 and 3,090.74

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Solution

The fourth proportional to 5,430.16, 8,134.46 and 3,090.74 is: 4,629.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.16 : 8,134.46 = 3,090.74 : x
  2. Step 2: Convert to fraction form
    5,430.16/8,134.46 = 3,090.74/x
  3. Step 3: Cross multiply
    5,430.16x = 8,134.46 × 3,090.74
  4. Step 4: Simplify right side
    5,430.16x = 25,141,500.90
  5. Step 5: Solve for x
    x = 25,141,500.90/5,430.16
  6. Step 6: Final answer
    x = 4,629.97

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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.