Home / 3,077.40-4,237.02-2,684.28

Finding the Fourth Proportional to 3,077.40, 4,237.02 and 2,684.28

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Solution

The fourth proportional to 3,077.40, 4,237.02 and 2,684.28 is: 3,695.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.40 : 4,237.02 = 2,684.28 : x
  2. Step 2: Convert to fraction form
    3,077.40/4,237.02 = 2,684.28/x
  3. Step 3: Cross multiply
    3,077.40x = 4,237.02 × 2,684.28
  4. Step 4: Simplify right side
    3,077.40x = 11,373,348.05
  5. Step 5: Solve for x
    x = 11,373,348.05/3,077.40
  6. Step 6: Final answer
    x = 3,695.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.