Home / 4,122.91-6,186.57-1,931.66

Finding the Fourth Proportional to 4,122.91, 6,186.57 and 1,931.66

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Solution

The fourth proportional to 4,122.91, 6,186.57 and 1,931.66 is: 2,898.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.91 : 6,186.57 = 1,931.66 : x
  2. Step 2: Convert to fraction form
    4,122.91/6,186.57 = 1,931.66/x
  3. Step 3: Cross multiply
    4,122.91x = 6,186.57 × 1,931.66
  4. Step 4: Simplify right side
    4,122.91x = 11,950,349.81
  5. Step 5: Solve for x
    x = 11,950,349.81/4,122.91
  6. Step 6: Final answer
    x = 2,898.52

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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.