Home / 1,815.58-2,722.92-517.06

Finding the Fourth Proportional to 1,815.58, 2,722.92 and 517.06

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Solution

The fourth proportional to 1,815.58, 2,722.92 and 517.06 is: 775.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.58 : 2,722.92 = 517.06 : x
  2. Step 2: Convert to fraction form
    1,815.58/2,722.92 = 517.06/x
  3. Step 3: Cross multiply
    1,815.58x = 2,722.92 × 517.06
  4. Step 4: Simplify right side
    1,815.58x = 1,407,913.02
  5. Step 5: Solve for x
    x = 1,407,913.02/1,815.58
  6. Step 6: Final answer
    x = 775.46

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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.