Home / 5,117.58-7,676.05-1,785.59

Finding the Fourth Proportional to 5,117.58, 7,676.05 and 1,785.59

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Solution

The fourth proportional to 5,117.58, 7,676.05 and 1,785.59 is: 2,678.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.58 : 7,676.05 = 1,785.59 : x
  2. Step 2: Convert to fraction form
    5,117.58/7,676.05 = 1,785.59/x
  3. Step 3: Cross multiply
    5,117.58x = 7,676.05 × 1,785.59
  4. Step 4: Simplify right side
    5,117.58x = 13,706,306.82
  5. Step 5: Solve for x
    x = 13,706,306.82/5,117.58
  6. Step 6: Final answer
    x = 2,678.28

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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.