Home / 3,629.24-5,444.18-1,320.12

Finding the Fourth Proportional to 3,629.24, 5,444.18 and 1,320.12

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Solution

The fourth proportional to 3,629.24, 5,444.18 and 1,320.12 is: 1,980.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.24 : 5,444.18 = 1,320.12 : x
  2. Step 2: Convert to fraction form
    3,629.24/5,444.18 = 1,320.12/x
  3. Step 3: Cross multiply
    3,629.24x = 5,444.18 × 1,320.12
  4. Step 4: Simplify right side
    3,629.24x = 7,186,970.90
  5. Step 5: Solve for x
    x = 7,186,970.90/3,629.24
  6. Step 6: Final answer
    x = 1,980.30

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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.