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Finding the Fourth Proportional to 3,953.66, 5,925.86 and 1,612.20

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Solution

The fourth proportional to 3,953.66, 5,925.86 and 1,612.20 is: 2,416.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.66 : 5,925.86 = 1,612.20 : x
  2. Step 2: Convert to fraction form
    3,953.66/5,925.86 = 1,612.20/x
  3. Step 3: Cross multiply
    3,953.66x = 5,925.86 × 1,612.20
  4. Step 4: Simplify right side
    3,953.66x = 9,553,663.43
  5. Step 5: Solve for x
    x = 9,553,663.43/3,953.66
  6. Step 6: Final answer
    x = 2,416.41

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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.