Home / 3,106.50-4,654.88-2,642.36

Finding the Fourth Proportional to 3,106.50, 4,654.88 and 2,642.36

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Solution

The fourth proportional to 3,106.50, 4,654.88 and 2,642.36 is: 3,959.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.50 : 4,654.88 = 2,642.36 : x
  2. Step 2: Convert to fraction form
    3,106.50/4,654.88 = 2,642.36/x
  3. Step 3: Cross multiply
    3,106.50x = 4,654.88 × 2,642.36
  4. Step 4: Simplify right side
    3,106.50x = 12,299,868.72
  5. Step 5: Solve for x
    x = 12,299,868.72/3,106.50
  6. Step 6: Final answer
    x = 3,959.40

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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.