Home / 3,005.78-4,506.90-1,156.54

Finding the Fourth Proportional to 3,005.78, 4,506.90 and 1,156.54

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Solution

The fourth proportional to 3,005.78, 4,506.90 and 1,156.54 is: 1,734.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,005.78 : 4,506.90 = 1,156.54 : x
  2. Step 2: Convert to fraction form
    3,005.78/4,506.90 = 1,156.54/x
  3. Step 3: Cross multiply
    3,005.78x = 4,506.90 × 1,156.54
  4. Step 4: Simplify right side
    3,005.78x = 5,212,410.13
  5. Step 5: Solve for x
    x = 5,212,410.13/3,005.78
  6. Step 6: Final answer
    x = 1,734.13

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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.