Home / 3,070.46-4,238.16-2,188.82

Finding the Fourth Proportional to 3,070.46, 4,238.16 and 2,188.82

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Solution

The fourth proportional to 3,070.46, 4,238.16 and 2,188.82 is: 3,021.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.46 : 4,238.16 = 2,188.82 : x
  2. Step 2: Convert to fraction form
    3,070.46/4,238.16 = 2,188.82/x
  3. Step 3: Cross multiply
    3,070.46x = 4,238.16 × 2,188.82
  4. Step 4: Simplify right side
    3,070.46x = 9,276,569.37
  5. Step 5: Solve for x
    x = 9,276,569.37/3,070.46
  6. Step 6: Final answer
    x = 3,021.23

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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.