Home / 1,155.15-1,593.59-933.93

Finding the Fourth Proportional to 1,155.15, 1,593.59 and 933.93

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Solution

The fourth proportional to 1,155.15, 1,593.59 and 933.93 is: 1,288.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.15 : 1,593.59 = 933.93 : x
  2. Step 2: Convert to fraction form
    1,155.15/1,593.59 = 933.93/x
  3. Step 3: Cross multiply
    1,155.15x = 1,593.59 × 933.93
  4. Step 4: Simplify right side
    1,155.15x = 1,488,296.84
  5. Step 5: Solve for x
    x = 1,488,296.84/1,155.15
  6. Step 6: Final answer
    x = 1,288.40

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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.