Home / 5,011.59-7,518.31-1,679.51

Finding the Fourth Proportional to 5,011.59, 7,518.31 and 1,679.51

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Solution

The fourth proportional to 5,011.59, 7,518.31 and 1,679.51 is: 2,519.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,011.59 : 7,518.31 = 1,679.51 : x
  2. Step 2: Convert to fraction form
    5,011.59/7,518.31 = 1,679.51/x
  3. Step 3: Cross multiply
    5,011.59x = 7,518.31 × 1,679.51
  4. Step 4: Simplify right side
    5,011.59x = 12,627,091.43
  5. Step 5: Solve for x
    x = 12,627,091.43/5,011.59
  6. Step 6: Final answer
    x = 2,519.58

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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.