Home / 3,143.00-4,710.35-1,291.55

Finding the Fourth Proportional to 3,143.00, 4,710.35 and 1,291.55

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Solution

The fourth proportional to 3,143.00, 4,710.35 and 1,291.55 is: 1,935.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.00 : 4,710.35 = 1,291.55 : x
  2. Step 2: Convert to fraction form
    3,143.00/4,710.35 = 1,291.55/x
  3. Step 3: Cross multiply
    3,143.00x = 4,710.35 × 1,291.55
  4. Step 4: Simplify right side
    3,143.00x = 6,083,632.22
  5. Step 5: Solve for x
    x = 6,083,632.22/3,143.00
  6. Step 6: Final answer
    x = 1,935.61

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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.