Home / 4,215.60-6,314.28-2,750.30

Finding the Fourth Proportional to 4,215.60, 6,314.28 and 2,750.30

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Solution

The fourth proportional to 4,215.60, 6,314.28 and 2,750.30 is: 4,119.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.60 : 6,314.28 = 2,750.30 : x
  2. Step 2: Convert to fraction form
    4,215.60/6,314.28 = 2,750.30/x
  3. Step 3: Cross multiply
    4,215.60x = 6,314.28 × 2,750.30
  4. Step 4: Simplify right side
    4,215.60x = 17,366,164.28
  5. Step 5: Solve for x
    x = 17,366,164.28/4,215.60
  6. Step 6: Final answer
    x = 4,119.50

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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.