Home / 3,155.67-4,355.10-1,896.93

Finding the Fourth Proportional to 3,155.67, 4,355.10 and 1,896.93

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Solution

The fourth proportional to 3,155.67, 4,355.10 and 1,896.93 is: 2,617.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.67 : 4,355.10 = 1,896.93 : x
  2. Step 2: Convert to fraction form
    3,155.67/4,355.10 = 1,896.93/x
  3. Step 3: Cross multiply
    3,155.67x = 4,355.10 × 1,896.93
  4. Step 4: Simplify right side
    3,155.67x = 8,261,319.84
  5. Step 5: Solve for x
    x = 8,261,319.84/3,155.67
  6. Step 6: Final answer
    x = 2,617.93

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1.5x scale

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.