Home / 1,206.34-1,664.63-675.08

Finding the Fourth Proportional to 1,206.34, 1,664.63 and 675.08

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Solution

The fourth proportional to 1,206.34, 1,664.63 and 675.08 is: 931.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206.34 : 1,664.63 = 675.08 : x
  2. Step 2: Convert to fraction form
    1,206.34/1,664.63 = 675.08/x
  3. Step 3: Cross multiply
    1,206.34x = 1,664.63 × 675.08
  4. Step 4: Simplify right side
    1,206.34x = 1,123,758.42
  5. Step 5: Solve for x
    x = 1,123,758.42/1,206.34
  6. Step 6: Final answer
    x = 931.55

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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.