Home / 4,257.80-6,386.70-4,056.20

Finding the Fourth Proportional to 4,257.80, 6,386.70 and 4,056.20

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Solution

The fourth proportional to 4,257.80, 6,386.70 and 4,056.20 is: 6,084.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,257.80 : 6,386.70 = 4,056.20 : x
  2. Step 2: Convert to fraction form
    4,257.80/6,386.70 = 4,056.20/x
  3. Step 3: Cross multiply
    4,257.80x = 6,386.70 × 4,056.20
  4. Step 4: Simplify right side
    4,257.80x = 25,905,732.54
  5. Step 5: Solve for x
    x = 25,905,732.54/4,257.80
  6. Step 6: Final answer
    x = 6,084.30

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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.