Home / 2,299.78-3,172.36-1,669.58

Finding the Fourth Proportional to 2,299.78, 3,172.36 and 1,669.58

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Solution

The fourth proportional to 2,299.78, 3,172.36 and 1,669.58 is: 2,303.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.78 : 3,172.36 = 1,669.58 : x
  2. Step 2: Convert to fraction form
    2,299.78/3,172.36 = 1,669.58/x
  3. Step 3: Cross multiply
    2,299.78x = 3,172.36 × 1,669.58
  4. Step 4: Simplify right side
    2,299.78x = 5,296,508.81
  5. Step 5: Solve for x
    x = 5,296,508.81/2,299.78
  6. Step 6: Final answer
    x = 2,303.05

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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.