Home / 3,012.03-4,156.41-1,685.72

Finding the Fourth Proportional to 3,012.03, 4,156.41 and 1,685.72

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Solution

The fourth proportional to 3,012.03, 4,156.41 and 1,685.72 is: 2,326.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012.03 : 4,156.41 = 1,685.72 : x
  2. Step 2: Convert to fraction form
    3,012.03/4,156.41 = 1,685.72/x
  3. Step 3: Cross multiply
    3,012.03x = 4,156.41 × 1,685.72
  4. Step 4: Simplify right side
    3,012.03x = 7,006,543.47
  5. Step 5: Solve for x
    x = 7,006,543.47/3,012.03
  6. Step 6: Final answer
    x = 2,326.19

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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.