Home / 4,280.46-6,419.75-1,358.06

Finding the Fourth Proportional to 4,280.46, 6,419.75 and 1,358.06

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Solution

The fourth proportional to 4,280.46, 6,419.75 and 1,358.06 is: 2,036.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.46 : 6,419.75 = 1,358.06 : x
  2. Step 2: Convert to fraction form
    4,280.46/6,419.75 = 1,358.06/x
  3. Step 3: Cross multiply
    4,280.46x = 6,419.75 × 1,358.06
  4. Step 4: Simplify right side
    4,280.46x = 8,718,405.69
  5. Step 5: Solve for x
    x = 8,718,405.69/4,280.46
  6. Step 6: Final answer
    x = 2,036.79

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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.