Home / 4,165.20-6,247.80-1,392.30

Finding the Fourth Proportional to 4,165.20, 6,247.80 and 1,392.30

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Solution

The fourth proportional to 4,165.20, 6,247.80 and 1,392.30 is: 2,088.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,165.20 : 6,247.80 = 1,392.30 : x
  2. Step 2: Convert to fraction form
    4,165.20/6,247.80 = 1,392.30/x
  3. Step 3: Cross multiply
    4,165.20x = 6,247.80 × 1,392.30
  4. Step 4: Simplify right side
    4,165.20x = 8,698,811.94
  5. Step 5: Solve for x
    x = 8,698,811.94/4,165.20
  6. Step 6: Final answer
    x = 2,088.45

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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.