Home / 4,785.01-7,178.05-2,187.61

Finding the Fourth Proportional to 4,785.01, 7,178.05 and 2,187.61

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Solution

The fourth proportional to 4,785.01, 7,178.05 and 2,187.61 is: 3,281.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,785.01 : 7,178.05 = 2,187.61 : x
  2. Step 2: Convert to fraction form
    4,785.01/7,178.05 = 2,187.61/x
  3. Step 3: Cross multiply
    4,785.01x = 7,178.05 × 2,187.61
  4. Step 4: Simplify right side
    4,785.01x = 15,702,738.07
  5. Step 5: Solve for x
    x = 15,702,738.07/4,785.01
  6. Step 6: Final answer
    x = 3,281.66

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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.