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Finding the Fourth Proportional to 3,437.79, 4,748.61 and 3,019.56

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Solution

The fourth proportional to 3,437.79, 4,748.61 and 3,019.56 is: 4,170.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,437.79 : 4,748.61 = 3,019.56 : x
  2. Step 2: Convert to fraction form
    3,437.79/4,748.61 = 3,019.56/x
  3. Step 3: Cross multiply
    3,437.79x = 4,748.61 × 3,019.56
  4. Step 4: Simplify right side
    3,437.79x = 14,338,712.81
  5. Step 5: Solve for x
    x = 14,338,712.81/3,437.79
  6. Step 6: Final answer
    x = 4,170.91

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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.