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Finding the Fourth Proportional to 2,859.81, 3,937.76 and 2,503.74

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Solution

The fourth proportional to 2,859.81, 3,937.76 and 2,503.74 is: 3,447.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.81 : 3,937.76 = 2,503.74 : x
  2. Step 2: Convert to fraction form
    2,859.81/3,937.76 = 2,503.74/x
  3. Step 3: Cross multiply
    2,859.81x = 3,937.76 × 2,503.74
  4. Step 4: Simplify right side
    2,859.81x = 9,859,119.72
  5. Step 5: Solve for x
    x = 9,859,119.72/2,859.81
  6. Step 6: Final answer
    x = 3,447.48

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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.