Home / 3,045.12-4,200.48-1,785.86

Finding the Fourth Proportional to 3,045.12, 4,200.48 and 1,785.86

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Solution

The fourth proportional to 3,045.12, 4,200.48 and 1,785.86 is: 2,463.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,045.12 : 4,200.48 = 1,785.86 : x
  2. Step 2: Convert to fraction form
    3,045.12/4,200.48 = 1,785.86/x
  3. Step 3: Cross multiply
    3,045.12x = 4,200.48 × 1,785.86
  4. Step 4: Simplify right side
    3,045.12x = 7,501,469.21
  5. Step 5: Solve for x
    x = 7,501,469.21/3,045.12
  6. Step 6: Final answer
    x = 2,463.44

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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.