Home / 3,057.98-4,219.88-1,731.66

Finding the Fourth Proportional to 3,057.98, 4,219.88 and 1,731.66

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Solution

The fourth proportional to 3,057.98, 4,219.88 and 1,731.66 is: 2,389.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.98 : 4,219.88 = 1,731.66 : x
  2. Step 2: Convert to fraction form
    3,057.98/4,219.88 = 1,731.66/x
  3. Step 3: Cross multiply
    3,057.98x = 4,219.88 × 1,731.66
  4. Step 4: Simplify right side
    3,057.98x = 7,307,397.40
  5. Step 5: Solve for x
    x = 7,307,397.40/3,057.98
  6. Step 6: Final answer
    x = 2,389.62

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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.