Home / 3,969.20-5,953.68-1,047.52

Finding the Fourth Proportional to 3,969.20, 5,953.68 and 1,047.52

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Solution

The fourth proportional to 3,969.20, 5,953.68 and 1,047.52 is: 1,571.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.20 : 5,953.68 = 1,047.52 : x
  2. Step 2: Convert to fraction form
    3,969.20/5,953.68 = 1,047.52/x
  3. Step 3: Cross multiply
    3,969.20x = 5,953.68 × 1,047.52
  4. Step 4: Simplify right side
    3,969.20x = 6,236,598.87
  5. Step 5: Solve for x
    x = 6,236,598.87/3,969.20
  6. Step 6: Final answer
    x = 1,571.25

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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.