Home / 1,400.72-2,097.84-1,352.12

Finding the Fourth Proportional to 1,400.72, 2,097.84 and 1,352.12

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Solution

The fourth proportional to 1,400.72, 2,097.84 and 1,352.12 is: 2,025.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400.72 : 2,097.84 = 1,352.12 : x
  2. Step 2: Convert to fraction form
    1,400.72/2,097.84 = 1,352.12/x
  3. Step 3: Cross multiply
    1,400.72x = 2,097.84 × 1,352.12
  4. Step 4: Simplify right side
    1,400.72x = 2,836,531.42
  5. Step 5: Solve for x
    x = 2,836,531.42/1,400.72
  6. Step 6: Final answer
    x = 2,025.05

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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.