Home / 1,612.27-2,418.09-457.75

Finding the Fourth Proportional to 1,612.27, 2,418.09 and 457.75

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Solution

The fourth proportional to 1,612.27, 2,418.09 and 457.75 is: 686.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.27 : 2,418.09 = 457.75 : x
  2. Step 2: Convert to fraction form
    1,612.27/2,418.09 = 457.75/x
  3. Step 3: Cross multiply
    1,612.27x = 2,418.09 × 457.75
  4. Step 4: Simplify right side
    1,612.27x = 1,106,880.70
  5. Step 5: Solve for x
    x = 1,106,880.70/1,612.27
  6. Step 6: Final answer
    x = 686.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.