Home / 2,712.36-4,070.12-1,152.28

Finding the Fourth Proportional to 2,712.36, 4,070.12 and 1,152.28

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Solution

The fourth proportional to 2,712.36, 4,070.12 and 1,152.28 is: 1,729.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.36 : 4,070.12 = 1,152.28 : x
  2. Step 2: Convert to fraction form
    2,712.36/4,070.12 = 1,152.28/x
  3. Step 3: Cross multiply
    2,712.36x = 4,070.12 × 1,152.28
  4. Step 4: Simplify right side
    2,712.36x = 4,689,917.87
  5. Step 5: Solve for x
    x = 4,689,917.87/2,712.36
  6. Step 6: Final answer
    x = 1,729.09

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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.