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Finding the Fourth Proportional to 3,082.87, 4,254.51 and 1,756.72

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Solution

The fourth proportional to 3,082.87, 4,254.51 and 1,756.72 is: 2,424.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,082.87 : 4,254.51 = 1,756.72 : x
  2. Step 2: Convert to fraction form
    3,082.87/4,254.51 = 1,756.72/x
  3. Step 3: Cross multiply
    3,082.87x = 4,254.51 × 1,756.72
  4. Step 4: Simplify right side
    3,082.87x = 7,473,982.81
  5. Step 5: Solve for x
    x = 7,473,982.81/3,082.87
  6. Step 6: Final answer
    x = 2,424.36

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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.