Home / 4,429.12-6,643.28-1,351.12

Finding the Fourth Proportional to 4,429.12, 6,643.28 and 1,351.12

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Solution

The fourth proportional to 4,429.12, 6,643.28 and 1,351.12 is: 2,026.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,429.12 : 6,643.28 = 1,351.12 : x
  2. Step 2: Convert to fraction form
    4,429.12/6,643.28 = 1,351.12/x
  3. Step 3: Cross multiply
    4,429.12x = 6,643.28 × 1,351.12
  4. Step 4: Simplify right side
    4,429.12x = 8,975,868.47
  5. Step 5: Solve for x
    x = 8,975,868.47/4,429.12
  6. Step 6: Final answer
    x = 2,026.56

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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.