Home / 3,435.26-5,155.11-1,243.80

Finding the Fourth Proportional to 3,435.26, 5,155.11 and 1,243.80

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Solution

The fourth proportional to 3,435.26, 5,155.11 and 1,243.80 is: 1,866.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,435.26 : 5,155.11 = 1,243.80 : x
  2. Step 2: Convert to fraction form
    3,435.26/5,155.11 = 1,243.80/x
  3. Step 3: Cross multiply
    3,435.26x = 5,155.11 × 1,243.80
  4. Step 4: Simplify right side
    3,435.26x = 6,411,925.82
  5. Step 5: Solve for x
    x = 6,411,925.82/3,435.26
  6. Step 6: Final answer
    x = 1,866.51

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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.