Home / 7,542.79-11,316.27-3,159.20

Finding the Fourth Proportional to 7,542.79, 11,316.27 and 3,159.20

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Solution

The fourth proportional to 7,542.79, 11,316.27 and 3,159.20 is: 4,739.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,542.79 : 11,316.27 = 3,159.20 : x
  2. Step 2: Convert to fraction form
    7,542.79/11,316.27 = 3,159.20/x
  3. Step 3: Cross multiply
    7,542.79x = 11,316.27 × 3,159.20
  4. Step 4: Simplify right side
    7,542.79x = 35,750,360.18
  5. Step 5: Solve for x
    x = 35,750,360.18/7,542.79
  6. Step 6: Final answer
    x = 4,739.67

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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.