Home / 1,520.91-2,281.41-1,004.22

Finding the Fourth Proportional to 1,520.91, 2,281.41 and 1,004.22

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Solution

The fourth proportional to 1,520.91, 2,281.41 and 1,004.22 is: 1,506.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.91 : 2,281.41 = 1,004.22 : x
  2. Step 2: Convert to fraction form
    1,520.91/2,281.41 = 1,004.22/x
  3. Step 3: Cross multiply
    1,520.91x = 2,281.41 × 1,004.22
  4. Step 4: Simplify right side
    1,520.91x = 2,291,037.55
  5. Step 5: Solve for x
    x = 2,291,037.55/1,520.91
  6. Step 6: Final answer
    x = 1,506.36

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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.