Home / 4,165.89-6,249.12-1,392.45

Finding the Fourth Proportional to 4,165.89, 6,249.12 and 1,392.45

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Solution

The fourth proportional to 4,165.89, 6,249.12 and 1,392.45 is: 2,088.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,165.89 : 6,249.12 = 1,392.45 : x
  2. Step 2: Convert to fraction form
    4,165.89/6,249.12 = 1,392.45/x
  3. Step 3: Cross multiply
    4,165.89x = 6,249.12 × 1,392.45
  4. Step 4: Simplify right side
    4,165.89x = 8,701,587.14
  5. Step 5: Solve for x
    x = 8,701,587.14/4,165.89
  6. Step 6: Final answer
    x = 2,088.77

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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.