Home / 1,580.22-2,175.75-1,343.70

Finding the Fourth Proportional to 1,580.22, 2,175.75 and 1,343.70

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Solution

The fourth proportional to 1,580.22, 2,175.75 and 1,343.70 is: 1,850.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,580.22 : 2,175.75 = 1,343.70 : x
  2. Step 2: Convert to fraction form
    1,580.22/2,175.75 = 1,343.70/x
  3. Step 3: Cross multiply
    1,580.22x = 2,175.75 × 1,343.70
  4. Step 4: Simplify right side
    1,580.22x = 2,923,555.28
  5. Step 5: Solve for x
    x = 2,923,555.28/1,580.22
  6. Step 6: Final answer
    x = 1,850.09

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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.