Home / 1,206.10-1,664.43-675.02

Finding the Fourth Proportional to 1,206.10, 1,664.43 and 675.02

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Solution

The fourth proportional to 1,206.10, 1,664.43 and 675.02 is: 931.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206.10 : 1,664.43 = 675.02 : x
  2. Step 2: Convert to fraction form
    1,206.10/1,664.43 = 675.02/x
  3. Step 3: Cross multiply
    1,206.10x = 1,664.43 × 675.02
  4. Step 4: Simplify right side
    1,206.10x = 1,123,523.54
  5. Step 5: Solve for x
    x = 1,123,523.54/1,206.10
  6. Step 6: Final answer
    x = 931.53

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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.