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Finding the Fourth Proportional to 1,425.07, 2,137.05 and 963.07

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Solution

The fourth proportional to 1,425.07, 2,137.05 and 963.07 is: 1,444.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425.07 : 2,137.05 = 963.07 : x
  2. Step 2: Convert to fraction form
    1,425.07/2,137.05 = 963.07/x
  3. Step 3: Cross multiply
    1,425.07x = 2,137.05 × 963.07
  4. Step 4: Simplify right side
    1,425.07x = 2,058,128.74
  5. Step 5: Solve for x
    x = 2,058,128.74/1,425.07
  6. Step 6: Final answer
    x = 1,444.23

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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.