Home / 2,285.67-3,154.22-1,587.45

Finding the Fourth Proportional to 2,285.67, 3,154.22 and 1,587.45

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Solution

The fourth proportional to 2,285.67, 3,154.22 and 1,587.45 is: 2,190.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.67 : 3,154.22 = 1,587.45 : x
  2. Step 2: Convert to fraction form
    2,285.67/3,154.22 = 1,587.45/x
  3. Step 3: Cross multiply
    2,285.67x = 3,154.22 × 1,587.45
  4. Step 4: Simplify right side
    2,285.67x = 5,007,166.54
  5. Step 5: Solve for x
    x = 5,007,166.54/2,285.67
  6. Step 6: Final answer
    x = 2,190.68

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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.