Home / 2,285.40-3,155.26-1,657.94

Finding the Fourth Proportional to 2,285.40, 3,155.26 and 1,657.94

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Solution

The fourth proportional to 2,285.40, 3,155.26 and 1,657.94 is: 2,288.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.40 : 3,155.26 = 1,657.94 : x
  2. Step 2: Convert to fraction form
    2,285.40/3,155.26 = 1,657.94/x
  3. Step 3: Cross multiply
    2,285.40x = 3,155.26 × 1,657.94
  4. Step 4: Simplify right side
    2,285.40x = 5,231,231.76
  5. Step 5: Solve for x
    x = 5,231,231.76/2,285.40
  6. Step 6: Final answer
    x = 2,288.98

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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.