Home / 3,166.17-4,749.20-1,218.79

Finding the Fourth Proportional to 3,166.17, 4,749.20 and 1,218.79

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Solution

The fourth proportional to 3,166.17, 4,749.20 and 1,218.79 is: 1,828.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,166.17 : 4,749.20 = 1,218.79 : x
  2. Step 2: Convert to fraction form
    3,166.17/4,749.20 = 1,218.79/x
  3. Step 3: Cross multiply
    3,166.17x = 4,749.20 × 1,218.79
  4. Step 4: Simplify right side
    3,166.17x = 5,788,271.37
  5. Step 5: Solve for x
    x = 5,788,271.37/3,166.17
  6. Step 6: Final answer
    x = 1,828.16

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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.