Home / 4,290.76-6,437.36-2,212.28

Finding the Fourth Proportional to 4,290.76, 6,437.36 and 2,212.28

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Solution

The fourth proportional to 4,290.76, 6,437.36 and 2,212.28 is: 3,319.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,290.76 : 6,437.36 = 2,212.28 : x
  2. Step 2: Convert to fraction form
    4,290.76/6,437.36 = 2,212.28/x
  3. Step 3: Cross multiply
    4,290.76x = 6,437.36 × 2,212.28
  4. Step 4: Simplify right side
    4,290.76x = 14,241,242.78
  5. Step 5: Solve for x
    x = 14,241,242.78/4,290.76
  6. Step 6: Final answer
    x = 3,319.05

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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.