Home / 5,176.19-7,143.15-2,818.34

Finding the Fourth Proportional to 5,176.19, 7,143.15 and 2,818.34

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Solution

The fourth proportional to 5,176.19, 7,143.15 and 2,818.34 is: 3,889.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.19 : 7,143.15 = 2,818.34 : x
  2. Step 2: Convert to fraction form
    5,176.19/7,143.15 = 2,818.34/x
  3. Step 3: Cross multiply
    5,176.19x = 7,143.15 × 2,818.34
  4. Step 4: Simplify right side
    5,176.19x = 20,131,827.01
  5. Step 5: Solve for x
    x = 20,131,827.01/5,176.19
  6. Step 6: Final answer
    x = 3,889.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.