Home / 3,012.24-4,156.98-1,686.17

Finding the Fourth Proportional to 3,012.24, 4,156.98 and 1,686.17

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Solution

The fourth proportional to 3,012.24, 4,156.98 and 1,686.17 is: 2,326.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012.24 : 4,156.98 = 1,686.17 : x
  2. Step 2: Convert to fraction form
    3,012.24/4,156.98 = 1,686.17/x
  3. Step 3: Cross multiply
    3,012.24x = 4,156.98 × 1,686.17
  4. Step 4: Simplify right side
    3,012.24x = 7,009,374.97
  5. Step 5: Solve for x
    x = 7,009,374.97/3,012.24
  6. Step 6: Final answer
    x = 2,326.96

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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.