Home / 5,112.56-7,055.04-2,874.52

Finding the Fourth Proportional to 5,112.56, 7,055.04 and 2,874.52

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Solution

The fourth proportional to 5,112.56, 7,055.04 and 2,874.52 is: 3,966.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.56 : 7,055.04 = 2,874.52 : x
  2. Step 2: Convert to fraction form
    5,112.56/7,055.04 = 2,874.52/x
  3. Step 3: Cross multiply
    5,112.56x = 7,055.04 × 2,874.52
  4. Step 4: Simplify right side
    5,112.56x = 20,279,853.58
  5. Step 5: Solve for x
    x = 20,279,853.58/5,112.56
  6. Step 6: Final answer
    x = 3,966.67

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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.