Home / 1,627.90-2,245.45-1,254.22

Finding the Fourth Proportional to 1,627.90, 2,245.45 and 1,254.22

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Solution

The fourth proportional to 1,627.90, 2,245.45 and 1,254.22 is: 1,730.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,627.90 : 2,245.45 = 1,254.22 : x
  2. Step 2: Convert to fraction form
    1,627.90/2,245.45 = 1,254.22/x
  3. Step 3: Cross multiply
    1,627.90x = 2,245.45 × 1,254.22
  4. Step 4: Simplify right side
    1,627.90x = 2,816,270.80
  5. Step 5: Solve for x
    x = 2,816,270.80/1,627.90
  6. Step 6: Final answer
    x = 1,730.01

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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.