Home / 3,085.86-4,629.24-1,005.20

Finding the Fourth Proportional to 3,085.86, 4,629.24 and 1,005.20

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Solution

The fourth proportional to 3,085.86, 4,629.24 and 1,005.20 is: 1,507.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.86 : 4,629.24 = 1,005.20 : x
  2. Step 2: Convert to fraction form
    3,085.86/4,629.24 = 1,005.20/x
  3. Step 3: Cross multiply
    3,085.86x = 4,629.24 × 1,005.20
  4. Step 4: Simplify right side
    3,085.86x = 4,653,306.26
  5. Step 5: Solve for x
    x = 4,653,306.26/3,085.86
  6. Step 6: Final answer
    x = 1,507.94

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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.