Home / 4,760.20-7,140.38-3,127.08

Finding the Fourth Proportional to 4,760.20, 7,140.38 and 3,127.08

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Solution

The fourth proportional to 4,760.20, 7,140.38 and 3,127.08 is: 4,690.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,760.20 : 7,140.38 = 3,127.08 : x
  2. Step 2: Convert to fraction form
    4,760.20/7,140.38 = 3,127.08/x
  3. Step 3: Cross multiply
    4,760.20x = 7,140.38 × 3,127.08
  4. Step 4: Simplify right side
    4,760.20x = 22,328,539.49
  5. Step 5: Solve for x
    x = 22,328,539.49/4,760.20
  6. Step 6: Final answer
    x = 4,690.67

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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.