Home / 2,814.16-4,212.60-1,512.40

Finding the Fourth Proportional to 2,814.16, 4,212.60 and 1,512.40

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Solution

The fourth proportional to 2,814.16, 4,212.60 and 1,512.40 is: 2,263.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.16 : 4,212.60 = 1,512.40 : x
  2. Step 2: Convert to fraction form
    2,814.16/4,212.60 = 1,512.40/x
  3. Step 3: Cross multiply
    2,814.16x = 4,212.60 × 1,512.40
  4. Step 4: Simplify right side
    2,814.16x = 6,371,136.24
  5. Step 5: Solve for x
    x = 6,371,136.24/2,814.16
  6. Step 6: Final answer
    x = 2,263.96

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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.