Home / 3,172.34-4,377.92-1,775.08

Finding the Fourth Proportional to 3,172.34, 4,377.92 and 1,775.08

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Solution

The fourth proportional to 3,172.34, 4,377.92 and 1,775.08 is: 2,449.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.34 : 4,377.92 = 1,775.08 : x
  2. Step 2: Convert to fraction form
    3,172.34/4,377.92 = 1,775.08/x
  3. Step 3: Cross multiply
    3,172.34x = 4,377.92 × 1,775.08
  4. Step 4: Simplify right side
    3,172.34x = 7,771,158.23
  5. Step 5: Solve for x
    x = 7,771,158.23/3,172.34
  6. Step 6: Final answer
    x = 2,449.66

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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.