Home / 1,352.23-1,851.21-1,343.12

Finding the Fourth Proportional to 1,352.23, 1,851.21 and 1,343.12

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Solution

The fourth proportional to 1,352.23, 1,851.21 and 1,343.12 is: 1,838.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352.23 : 1,851.21 = 1,343.12 : x
  2. Step 2: Convert to fraction form
    1,352.23/1,851.21 = 1,343.12/x
  3. Step 3: Cross multiply
    1,352.23x = 1,851.21 × 1,343.12
  4. Step 4: Simplify right side
    1,352.23x = 2,486,397.18
  5. Step 5: Solve for x
    x = 2,486,397.18/1,352.23
  6. Step 6: Final answer
    x = 1,838.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.