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Finding the Fourth Proportional to 2,587.02, 3,880.54 and 738.13

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Solution

The fourth proportional to 2,587.02, 3,880.54 and 738.13 is: 1,107.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.02 : 3,880.54 = 738.13 : x
  2. Step 2: Convert to fraction form
    2,587.02/3,880.54 = 738.13/x
  3. Step 3: Cross multiply
    2,587.02x = 3,880.54 × 738.13
  4. Step 4: Simplify right side
    2,587.02x = 2,864,342.99
  5. Step 5: Solve for x
    x = 2,864,342.99/2,587.02
  6. Step 6: Final answer
    x = 1,107.20

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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.