Home / 3,146.34-4,341.95-1,820.15

Finding the Fourth Proportional to 3,146.34, 4,341.95 and 1,820.15

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Solution

The fourth proportional to 3,146.34, 4,341.95 and 1,820.15 is: 2,511.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.34 : 4,341.95 = 1,820.15 : x
  2. Step 2: Convert to fraction form
    3,146.34/4,341.95 = 1,820.15/x
  3. Step 3: Cross multiply
    3,146.34x = 4,341.95 × 1,820.15
  4. Step 4: Simplify right side
    3,146.34x = 7,902,990.62
  5. Step 5: Solve for x
    x = 7,902,990.62/3,146.34
  6. Step 6: Final answer
    x = 2,511.80

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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.