Home / 3,628.85-5,436.90-2,587.30

Finding the Fourth Proportional to 3,628.85, 5,436.90 and 2,587.30

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Solution

The fourth proportional to 3,628.85, 5,436.90 and 2,587.30 is: 3,876.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,628.85 : 5,436.90 = 2,587.30 : x
  2. Step 2: Convert to fraction form
    3,628.85/5,436.90 = 2,587.30/x
  3. Step 3: Cross multiply
    3,628.85x = 5,436.90 × 2,587.30
  4. Step 4: Simplify right side
    3,628.85x = 14,066,877.78
  5. Step 5: Solve for x
    x = 14,066,877.78/3,628.85
  6. Step 6: Final answer
    x = 3,876.40

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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.