Home / 3,165.10-4,367.80-1,838.86

Finding the Fourth Proportional to 3,165.10, 4,367.80 and 1,838.86

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Solution

The fourth proportional to 3,165.10, 4,367.80 and 1,838.86 is: 2,537.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,165.10 : 4,367.80 = 1,838.86 : x
  2. Step 2: Convert to fraction form
    3,165.10/4,367.80 = 1,838.86/x
  3. Step 3: Cross multiply
    3,165.10x = 4,367.80 × 1,838.86
  4. Step 4: Simplify right side
    3,165.10x = 8,031,772.71
  5. Step 5: Solve for x
    x = 8,031,772.71/3,165.10
  6. Step 6: Final answer
    x = 2,537.60

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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.