Home / 2,587.68-3,900.96-2,380.32

Finding the Fourth Proportional to 2,587.68, 3,900.96 and 2,380.32

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Solution

The fourth proportional to 2,587.68, 3,900.96 and 2,380.32 is: 3,588.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.68 : 3,900.96 = 2,380.32 : x
  2. Step 2: Convert to fraction form
    2,587.68/3,900.96 = 2,380.32/x
  3. Step 3: Cross multiply
    2,587.68x = 3,900.96 × 2,380.32
  4. Step 4: Simplify right side
    2,587.68x = 9,285,533.11
  5. Step 5: Solve for x
    x = 9,285,533.11/2,587.68
  6. Step 6: Final answer
    x = 3,588.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.