Home / 4,255.52-6,385.76-1,790.19

Finding the Fourth Proportional to 4,255.52, 6,385.76 and 1,790.19

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Solution

The fourth proportional to 4,255.52, 6,385.76 and 1,790.19 is: 2,686.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,255.52 : 6,385.76 = 1,790.19 : x
  2. Step 2: Convert to fraction form
    4,255.52/6,385.76 = 1,790.19/x
  3. Step 3: Cross multiply
    4,255.52x = 6,385.76 × 1,790.19
  4. Step 4: Simplify right side
    4,255.52x = 11,431,714.74
  5. Step 5: Solve for x
    x = 11,431,714.74/4,255.52
  6. Step 6: Final answer
    x = 2,686.33

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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.