Home / 2,807.40-4,212-1,164.12

Finding the Fourth Proportional to 2,807.40, 4,212 and 1,164.12

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Solution

The fourth proportional to 2,807.40, 4,212 and 1,164.12 is: 1,746.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807.40 : 4,212 = 1,164.12 : x
  2. Step 2: Convert to fraction form
    2,807.40/4,212 = 1,164.12/x
  3. Step 3: Cross multiply
    2,807.40x = 4,212 × 1,164.12
  4. Step 4: Simplify right side
    2,807.40x = 4,903,273.44
  5. Step 5: Solve for x
    x = 4,903,273.44/2,807.40
  6. Step 6: Final answer
    x = 1,746.55

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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.