Home / 1,519.99-2,280.71-826.63

Finding the Fourth Proportional to 1,519.99, 2,280.71 and 826.63

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Solution

The fourth proportional to 1,519.99, 2,280.71 and 826.63 is: 1,240.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.99 : 2,280.71 = 826.63 : x
  2. Step 2: Convert to fraction form
    1,519.99/2,280.71 = 826.63/x
  3. Step 3: Cross multiply
    1,519.99x = 2,280.71 × 826.63
  4. Step 4: Simplify right side
    1,519.99x = 1,885,303.31
  5. Step 5: Solve for x
    x = 1,885,303.31/1,519.99
  6. Step 6: Final answer
    x = 1,240.34

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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.