Home / 3,146.80-4,341.25-1,887.45

Finding the Fourth Proportional to 3,146.80, 4,341.25 and 1,887.45

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Solution

The fourth proportional to 3,146.80, 4,341.25 and 1,887.45 is: 2,603.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.80 : 4,341.25 = 1,887.45 : x
  2. Step 2: Convert to fraction form
    3,146.80/4,341.25 = 1,887.45/x
  3. Step 3: Cross multiply
    3,146.80x = 4,341.25 × 1,887.45
  4. Step 4: Simplify right side
    3,146.80x = 8,193,892.19
  5. Step 5: Solve for x
    x = 8,193,892.19/3,146.80
  6. Step 6: Final answer
    x = 2,603.88

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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.