Home / 4,760.08-7,140.12-2,780.86

Finding the Fourth Proportional to 4,760.08, 7,140.12 and 2,780.86

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Solution

The fourth proportional to 4,760.08, 7,140.12 and 2,780.86 is: 4,171.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,760.08 : 7,140.12 = 2,780.86 : x
  2. Step 2: Convert to fraction form
    4,760.08/7,140.12 = 2,780.86/x
  3. Step 3: Cross multiply
    4,760.08x = 7,140.12 × 2,780.86
  4. Step 4: Simplify right side
    4,760.08x = 19,855,674.10
  5. Step 5: Solve for x
    x = 19,855,674.10/4,760.08
  6. Step 6: Final answer
    x = 4,171.29

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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.