Home / 2,256.36-3,390.76-1,970.70

Finding the Fourth Proportional to 2,256.36, 3,390.76 and 1,970.70

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Solution

The fourth proportional to 2,256.36, 3,390.76 and 1,970.70 is: 2,961.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256.36 : 3,390.76 = 1,970.70 : x
  2. Step 2: Convert to fraction form
    2,256.36/3,390.76 = 1,970.70/x
  3. Step 3: Cross multiply
    2,256.36x = 3,390.76 × 1,970.70
  4. Step 4: Simplify right side
    2,256.36x = 6,682,160.48
  5. Step 5: Solve for x
    x = 6,682,160.48/2,256.36
  6. Step 6: Final answer
    x = 2,961.48

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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.