Home / 1,621.14-2,416.29-1,528.87

Finding the Fourth Proportional to 1,621.14, 2,416.29 and 1,528.87

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Solution

The fourth proportional to 1,621.14, 2,416.29 and 1,528.87 is: 2,278.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.14 : 2,416.29 = 1,528.87 : x
  2. Step 2: Convert to fraction form
    1,621.14/2,416.29 = 1,528.87/x
  3. Step 3: Cross multiply
    1,621.14x = 2,416.29 × 1,528.87
  4. Step 4: Simplify right side
    1,621.14x = 3,694,197.11
  5. Step 5: Solve for x
    x = 3,694,197.11/1,621.14
  6. Step 6: Final answer
    x = 2,278.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.