Home / 2,285.72-3,155.14-1,541.80

Finding the Fourth Proportional to 2,285.72, 3,155.14 and 1,541.80

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Solution

The fourth proportional to 2,285.72, 3,155.14 and 1,541.80 is: 2,128.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.72 : 3,155.14 = 1,541.80 : x
  2. Step 2: Convert to fraction form
    2,285.72/3,155.14 = 1,541.80/x
  3. Step 3: Cross multiply
    2,285.72x = 3,155.14 × 1,541.80
  4. Step 4: Simplify right side
    2,285.72x = 4,864,594.85
  5. Step 5: Solve for x
    x = 4,864,594.85/2,285.72
  6. Step 6: Final answer
    x = 2,128.25

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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.