Home / 1,155.93-1,734.12-334.21

Finding the Fourth Proportional to 1,155.93, 1,734.12 and 334.21

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Solution

The fourth proportional to 1,155.93, 1,734.12 and 334.21 is: 501.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.93 : 1,734.12 = 334.21 : x
  2. Step 2: Convert to fraction form
    1,155.93/1,734.12 = 334.21/x
  3. Step 3: Cross multiply
    1,155.93x = 1,734.12 × 334.21
  4. Step 4: Simplify right side
    1,155.93x = 579,559.16
  5. Step 5: Solve for x
    x = 579,559.16/1,155.93
  6. Step 6: Final answer
    x = 501.38

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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.