Home / 3,102.94-4,649.55-1,868.91

Finding the Fourth Proportional to 3,102.94, 4,649.55 and 1,868.91

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Solution

The fourth proportional to 3,102.94, 4,649.55 and 1,868.91 is: 2,800.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.94 : 4,649.55 = 1,868.91 : x
  2. Step 2: Convert to fraction form
    3,102.94/4,649.55 = 1,868.91/x
  3. Step 3: Cross multiply
    3,102.94x = 4,649.55 × 1,868.91
  4. Step 4: Simplify right side
    3,102.94x = 8,689,590.49
  5. Step 5: Solve for x
    x = 8,689,590.49/3,102.94
  6. Step 6: Final answer
    x = 2,800.44

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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.