Home / 4,280.32-6,419.84-3,554.56

Finding the Fourth Proportional to 4,280.32, 6,419.84 and 3,554.56

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Solution

The fourth proportional to 4,280.32, 6,419.84 and 3,554.56 is: 5,331.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.32 : 6,419.84 = 3,554.56 : x
  2. Step 2: Convert to fraction form
    4,280.32/6,419.84 = 3,554.56/x
  3. Step 3: Cross multiply
    4,280.32x = 6,419.84 × 3,554.56
  4. Step 4: Simplify right side
    4,280.32x = 22,819,706.47
  5. Step 5: Solve for x
    x = 22,819,706.47/4,280.32
  6. Step 6: Final answer
    x = 5,331.31

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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.