Home / 1,627.16-2,440.35-457.27

Finding the Fourth Proportional to 1,627.16, 2,440.35 and 457.27

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Solution

The fourth proportional to 1,627.16, 2,440.35 and 457.27 is: 685.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,627.16 : 2,440.35 = 457.27 : x
  2. Step 2: Convert to fraction form
    1,627.16/2,440.35 = 457.27/x
  3. Step 3: Cross multiply
    1,627.16x = 2,440.35 × 457.27
  4. Step 4: Simplify right side
    1,627.16x = 1,115,900.27
  5. Step 5: Solve for x
    x = 1,115,900.27/1,627.16
  6. Step 6: Final answer
    x = 685.80

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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.