Home / 1,177.34-1,766.19-355.51

Finding the Fourth Proportional to 1,177.34, 1,766.19 and 355.51

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Solution

The fourth proportional to 1,177.34, 1,766.19 and 355.51 is: 533.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.34 : 1,766.19 = 355.51 : x
  2. Step 2: Convert to fraction form
    1,177.34/1,766.19 = 355.51/x
  3. Step 3: Cross multiply
    1,177.34x = 1,766.19 × 355.51
  4. Step 4: Simplify right side
    1,177.34x = 627,889.81
  5. Step 5: Solve for x
    x = 627,889.81/1,177.34
  6. Step 6: Final answer
    x = 533.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.