Home / 3,087.08-4,261.38-2,038.76

Finding the Fourth Proportional to 3,087.08, 4,261.38 and 2,038.76

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Solution

The fourth proportional to 3,087.08, 4,261.38 and 2,038.76 is: 2,814.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.08 : 4,261.38 = 2,038.76 : x
  2. Step 2: Convert to fraction form
    3,087.08/4,261.38 = 2,038.76/x
  3. Step 3: Cross multiply
    3,087.08x = 4,261.38 × 2,038.76
  4. Step 4: Simplify right side
    3,087.08x = 8,687,931.09
  5. Step 5: Solve for x
    x = 8,687,931.09/3,087.08
  6. Step 6: Final answer
    x = 2,814.29

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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.