Home / 3,321.85-4,983.31-1,130.35

Finding the Fourth Proportional to 3,321.85, 4,983.31 and 1,130.35

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Solution

The fourth proportional to 3,321.85, 4,983.31 and 1,130.35 is: 1,695.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.85 : 4,983.31 = 1,130.35 : x
  2. Step 2: Convert to fraction form
    3,321.85/4,983.31 = 1,130.35/x
  3. Step 3: Cross multiply
    3,321.85x = 4,983.31 × 1,130.35
  4. Step 4: Simplify right side
    3,321.85x = 5,632,856.72
  5. Step 5: Solve for x
    x = 5,632,856.72/3,321.85
  6. Step 6: Final answer
    x = 1,695.70

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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.