Home / 2,132.07-2,942.22-1,187.93

Finding the Fourth Proportional to 2,132.07, 2,942.22 and 1,187.93

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Solution

The fourth proportional to 2,132.07, 2,942.22 and 1,187.93 is: 1,639.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.07 : 2,942.22 = 1,187.93 : x
  2. Step 2: Convert to fraction form
    2,132.07/2,942.22 = 1,187.93/x
  3. Step 3: Cross multiply
    2,132.07x = 2,942.22 × 1,187.93
  4. Step 4: Simplify right side
    2,132.07x = 3,495,132.24
  5. Step 5: Solve for x
    x = 3,495,132.24/2,132.07
  6. Step 6: Final answer
    x = 1,639.32

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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.