Home / 4,212.28-6,319.86-1,580.14

Finding the Fourth Proportional to 4,212.28, 6,319.86 and 1,580.14

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Solution

The fourth proportional to 4,212.28, 6,319.86 and 1,580.14 is: 2,370.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.28 : 6,319.86 = 1,580.14 : x
  2. Step 2: Convert to fraction form
    4,212.28/6,319.86 = 1,580.14/x
  3. Step 3: Cross multiply
    4,212.28x = 6,319.86 × 1,580.14
  4. Step 4: Simplify right side
    4,212.28x = 9,986,263.58
  5. Step 5: Solve for x
    x = 9,986,263.58/4,212.28
  6. Step 6: Final answer
    x = 2,370.75

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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.