Home / 7,166.48-10,749.56-1,972.40

Finding the Fourth Proportional to 7,166.48, 10,749.56 and 1,972.40

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Solution

The fourth proportional to 7,166.48, 10,749.56 and 1,972.40 is: 2,958.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,166.48 : 10,749.56 = 1,972.40 : x
  2. Step 2: Convert to fraction form
    7,166.48/10,749.56 = 1,972.40/x
  3. Step 3: Cross multiply
    7,166.48x = 10,749.56 × 1,972.40
  4. Step 4: Simplify right side
    7,166.48x = 21,202,432.14
  5. Step 5: Solve for x
    x = 21,202,432.14/7,166.48
  6. Step 6: Final answer
    x = 2,958.56

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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.