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Finding the Fourth Proportional to 2,874.80, 4,313.40 and 927.52

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Solution

The fourth proportional to 2,874.80, 4,313.40 and 927.52 is: 1,391.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.80 : 4,313.40 = 927.52 : x
  2. Step 2: Convert to fraction form
    2,874.80/4,313.40 = 927.52/x
  3. Step 3: Cross multiply
    2,874.80x = 4,313.40 × 927.52
  4. Step 4: Simplify right side
    2,874.80x = 4,000,764.77
  5. Step 5: Solve for x
    x = 4,000,764.77/2,874.80
  6. Step 6: Final answer
    x = 1,391.67

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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.