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Finding the Fourth Proportional to 2,859.45, 3,946.01 and 1,600.49

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Solution

The fourth proportional to 2,859.45, 3,946.01 and 1,600.49 is: 2,208.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.45 : 3,946.01 = 1,600.49 : x
  2. Step 2: Convert to fraction form
    2,859.45/3,946.01 = 1,600.49/x
  3. Step 3: Cross multiply
    2,859.45x = 3,946.01 × 1,600.49
  4. Step 4: Simplify right side
    2,859.45x = 6,315,521.81
  5. Step 5: Solve for x
    x = 6,315,521.81/2,859.45
  6. Step 6: Final answer
    x = 2,208.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.