Home / 3,070.98-4,236.12-1,891.17

Finding the Fourth Proportional to 3,070.98, 4,236.12 and 1,891.17

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Solution

The fourth proportional to 3,070.98, 4,236.12 and 1,891.17 is: 2,608.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.98 : 4,236.12 = 1,891.17 : x
  2. Step 2: Convert to fraction form
    3,070.98/4,236.12 = 1,891.17/x
  3. Step 3: Cross multiply
    3,070.98x = 4,236.12 × 1,891.17
  4. Step 4: Simplify right side
    3,070.98x = 8,011,223.06
  5. Step 5: Solve for x
    x = 8,011,223.06/3,070.98
  6. Step 6: Final answer
    x = 2,608.69

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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.