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Finding the Fourth Proportional to 1,503.69, 2,074.37 and 943.88

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Solution

The fourth proportional to 1,503.69, 2,074.37 and 943.88 is: 1,302.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,503.69 : 2,074.37 = 943.88 : x
  2. Step 2: Convert to fraction form
    1,503.69/2,074.37 = 943.88/x
  3. Step 3: Cross multiply
    1,503.69x = 2,074.37 × 943.88
  4. Step 4: Simplify right side
    1,503.69x = 1,957,951.64
  5. Step 5: Solve for x
    x = 1,957,951.64/1,503.69
  6. Step 6: Final answer
    x = 1,302.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.