Home / 4,257.80-6,388.06-1,485.16

Finding the Fourth Proportional to 4,257.80, 6,388.06 and 1,485.16

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Solution

The fourth proportional to 4,257.80, 6,388.06 and 1,485.16 is: 2,228.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,257.80 : 6,388.06 = 1,485.16 : x
  2. Step 2: Convert to fraction form
    4,257.80/6,388.06 = 1,485.16/x
  3. Step 3: Cross multiply
    4,257.80x = 6,388.06 × 1,485.16
  4. Step 4: Simplify right side
    4,257.80x = 9,487,291.19
  5. Step 5: Solve for x
    x = 9,487,291.19/4,257.80
  6. Step 6: Final answer
    x = 2,228.21

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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.