Home / 4,214.16-6,321.96-1,292.40

Finding the Fourth Proportional to 4,214.16, 6,321.96 and 1,292.40

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Solution

The fourth proportional to 4,214.16, 6,321.96 and 1,292.40 is: 1,938.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,214.16 : 6,321.96 = 1,292.40 : x
  2. Step 2: Convert to fraction form
    4,214.16/6,321.96 = 1,292.40/x
  3. Step 3: Cross multiply
    4,214.16x = 6,321.96 × 1,292.40
  4. Step 4: Simplify right side
    4,214.16x = 8,170,501.10
  5. Step 5: Solve for x
    x = 8,170,501.10/4,214.16
  6. Step 6: Final answer
    x = 1,938.82

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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.