Home / 4,785.54-7,177.47-2,187.86

Finding the Fourth Proportional to 4,785.54, 7,177.47 and 2,187.86

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Solution

The fourth proportional to 4,785.54, 7,177.47 and 2,187.86 is: 3,281.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,785.54 : 7,177.47 = 2,187.86 : x
  2. Step 2: Convert to fraction form
    4,785.54/7,177.47 = 2,187.86/x
  3. Step 3: Cross multiply
    4,785.54x = 7,177.47 × 2,187.86
  4. Step 4: Simplify right side
    4,785.54x = 15,703,299.51
  5. Step 5: Solve for x
    x = 15,703,299.51/4,785.54
  6. Step 6: Final answer
    x = 3,281.41

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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.