Home / 2,765.77-3,816.96-1,587.01

Finding the Fourth Proportional to 2,765.77, 3,816.96 and 1,587.01

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Solution

The fourth proportional to 2,765.77, 3,816.96 and 1,587.01 is: 2,190.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.77 : 3,816.96 = 1,587.01 : x
  2. Step 2: Convert to fraction form
    2,765.77/3,816.96 = 1,587.01/x
  3. Step 3: Cross multiply
    2,765.77x = 3,816.96 × 1,587.01
  4. Step 4: Simplify right side
    2,765.77x = 6,057,553.69
  5. Step 5: Solve for x
    x = 6,057,553.69/2,765.77
  6. Step 6: Final answer
    x = 2,190.19

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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.