Home / 2,628.94-3,936.45-1,587.55

Finding the Fourth Proportional to 2,628.94, 3,936.45 and 1,587.55

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Solution

The fourth proportional to 2,628.94, 3,936.45 and 1,587.55 is: 2,377.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.94 : 3,936.45 = 1,587.55 : x
  2. Step 2: Convert to fraction form
    2,628.94/3,936.45 = 1,587.55/x
  3. Step 3: Cross multiply
    2,628.94x = 3,936.45 × 1,587.55
  4. Step 4: Simplify right side
    2,628.94x = 6,249,311.20
  5. Step 5: Solve for x
    x = 6,249,311.20/2,628.94
  6. Step 6: Final answer
    x = 2,377.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.