Home / 3,106.80-4,663.80-1,875.60

Finding the Fourth Proportional to 3,106.80, 4,663.80 and 1,875.60

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Solution

The fourth proportional to 3,106.80, 4,663.80 and 1,875.60 is: 2,815.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.80 : 4,663.80 = 1,875.60 : x
  2. Step 2: Convert to fraction form
    3,106.80/4,663.80 = 1,875.60/x
  3. Step 3: Cross multiply
    3,106.80x = 4,663.80 × 1,875.60
  4. Step 4: Simplify right side
    3,106.80x = 8,747,423.28
  5. Step 5: Solve for x
    x = 8,747,423.28/3,106.80
  6. Step 6: Final answer
    x = 2,815.57

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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.