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Finding the Fourth Proportional to 4,256.66, 6,384.99 and 1,917.48

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Solution

The fourth proportional to 4,256.66, 6,384.99 and 1,917.48 is: 2,876.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,256.66 : 6,384.99 = 1,917.48 : x
  2. Step 2: Convert to fraction form
    4,256.66/6,384.99 = 1,917.48/x
  3. Step 3: Cross multiply
    4,256.66x = 6,384.99 × 1,917.48
  4. Step 4: Simplify right side
    4,256.66x = 12,243,121.76
  5. Step 5: Solve for x
    x = 12,243,121.76/4,256.66
  6. Step 6: Final answer
    x = 2,876.23

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Similar ratio
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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.