Home / 2,827.90-4,242.67-1,267.55

Finding the Fourth Proportional to 2,827.90, 4,242.67 and 1,267.55

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Solution

The fourth proportional to 2,827.90, 4,242.67 and 1,267.55 is: 1,901.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,827.90 : 4,242.67 = 1,267.55 : x
  2. Step 2: Convert to fraction form
    2,827.90/4,242.67 = 1,267.55/x
  3. Step 3: Cross multiply
    2,827.90x = 4,242.67 × 1,267.55
  4. Step 4: Simplify right side
    2,827.90x = 5,377,796.36
  5. Step 5: Solve for x
    x = 5,377,796.36/2,827.90
  6. Step 6: Final answer
    x = 1,901.70

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1.5x scale

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.