Home / 2,815.86-4,223.79-1,525.53

Finding the Fourth Proportional to 2,815.86, 4,223.79 and 1,525.53

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Solution

The fourth proportional to 2,815.86, 4,223.79 and 1,525.53 is: 2,288.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.86 : 4,223.79 = 1,525.53 : x
  2. Step 2: Convert to fraction form
    2,815.86/4,223.79 = 1,525.53/x
  3. Step 3: Cross multiply
    2,815.86x = 4,223.79 × 1,525.53
  4. Step 4: Simplify right side
    2,815.86x = 6,443,518.36
  5. Step 5: Solve for x
    x = 6,443,518.36/2,815.86
  6. Step 6: Final answer
    x = 2,288.30

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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.