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Finding the Fourth Proportional to 3,946.15, 5,916.48 and 1,864.99

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Solution

The fourth proportional to 3,946.15, 5,916.48 and 1,864.99 is: 2,796.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.15 : 5,916.48 = 1,864.99 : x
  2. Step 2: Convert to fraction form
    3,946.15/5,916.48 = 1,864.99/x
  3. Step 3: Cross multiply
    3,946.15x = 5,916.48 × 1,864.99
  4. Step 4: Simplify right side
    3,946.15x = 11,034,176.04
  5. Step 5: Solve for x
    x = 11,034,176.04/3,946.15
  6. Step 6: Final answer
    x = 2,796.19

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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.