Home / 2,785.22-4,177.76-837.30

Finding the Fourth Proportional to 2,785.22, 4,177.76 and 837.30

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Solution

The fourth proportional to 2,785.22, 4,177.76 and 837.30 is: 1,255.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.22 : 4,177.76 = 837.30 : x
  2. Step 2: Convert to fraction form
    2,785.22/4,177.76 = 837.30/x
  3. Step 3: Cross multiply
    2,785.22x = 4,177.76 × 837.30
  4. Step 4: Simplify right side
    2,785.22x = 3,498,038.45
  5. Step 5: Solve for x
    x = 3,498,038.45/2,785.22
  6. Step 6: Final answer
    x = 1,255.93

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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.