Home / 5,195.07-7,780.16-3,785.71

Finding the Fourth Proportional to 5,195.07, 7,780.16 and 3,785.71

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Solution

The fourth proportional to 5,195.07, 7,780.16 and 3,785.71 is: 5,669.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,195.07 : 7,780.16 = 3,785.71 : x
  2. Step 2: Convert to fraction form
    5,195.07/7,780.16 = 3,785.71/x
  3. Step 3: Cross multiply
    5,195.07x = 7,780.16 × 3,785.71
  4. Step 4: Simplify right side
    5,195.07x = 29,453,434.12
  5. Step 5: Solve for x
    x = 29,453,434.12/5,195.07
  6. Step 6: Final answer
    x = 5,669.50

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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.