Home / 1,615.63-2,421.90-1,028.83

Finding the Fourth Proportional to 1,615.63, 2,421.90 and 1,028.83

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Solution

The fourth proportional to 1,615.63, 2,421.90 and 1,028.83 is: 1,542.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.63 : 2,421.90 = 1,028.83 : x
  2. Step 2: Convert to fraction form
    1,615.63/2,421.90 = 1,028.83/x
  3. Step 3: Cross multiply
    1,615.63x = 2,421.90 × 1,028.83
  4. Step 4: Simplify right side
    1,615.63x = 2,491,723.38
  5. Step 5: Solve for x
    x = 2,491,723.38/1,615.63
  6. Step 6: Final answer
    x = 1,542.26

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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.