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Finding the Fourth Proportional to 1,583.93, 2,375.90 and 938.77

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Solution

The fourth proportional to 1,583.93, 2,375.90 and 938.77 is: 1,408.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583.93 : 2,375.90 = 938.77 : x
  2. Step 2: Convert to fraction form
    1,583.93/2,375.90 = 938.77/x
  3. Step 3: Cross multiply
    1,583.93x = 2,375.90 × 938.77
  4. Step 4: Simplify right side
    1,583.93x = 2,230,423.64
  5. Step 5: Solve for x
    x = 2,230,423.64/1,583.93
  6. Step 6: Final answer
    x = 1,408.16

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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.