Home / 3,146.31-4,341.87-1,820.01

Finding the Fourth Proportional to 3,146.31, 4,341.87 and 1,820.01

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Solution

The fourth proportional to 3,146.31, 4,341.87 and 1,820.01 is: 2,511.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.31 : 4,341.87 = 1,820.01 : x
  2. Step 2: Convert to fraction form
    3,146.31/4,341.87 = 1,820.01/x
  3. Step 3: Cross multiply
    3,146.31x = 4,341.87 × 1,820.01
  4. Step 4: Simplify right side
    3,146.31x = 7,902,246.82
  5. Step 5: Solve for x
    x = 7,902,246.82/3,146.31
  6. Step 6: Final answer
    x = 2,511.59

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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.