Home / 2,132.13-2,942.40-1,200.63

Finding the Fourth Proportional to 2,132.13, 2,942.40 and 1,200.63

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Solution

The fourth proportional to 2,132.13, 2,942.40 and 1,200.63 is: 1,656.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.13 : 2,942.40 = 1,200.63 : x
  2. Step 2: Convert to fraction form
    2,132.13/2,942.40 = 1,200.63/x
  3. Step 3: Cross multiply
    2,132.13x = 2,942.40 × 1,200.63
  4. Step 4: Simplify right side
    2,132.13x = 3,532,733.71
  5. Step 5: Solve for x
    x = 3,532,733.71/2,132.13
  6. Step 6: Final answer
    x = 1,656.90

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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.