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Finding the Fourth Proportional to 2,490.34, 3,735.60 and 846.94

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Solution

The fourth proportional to 2,490.34, 3,735.60 and 846.94 is: 1,270.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.34 : 3,735.60 = 846.94 : x
  2. Step 2: Convert to fraction form
    2,490.34/3,735.60 = 846.94/x
  3. Step 3: Cross multiply
    2,490.34x = 3,735.60 × 846.94
  4. Step 4: Simplify right side
    2,490.34x = 3,163,829.06
  5. Step 5: Solve for x
    x = 3,163,829.06/2,490.34
  6. Step 6: Final answer
    x = 1,270.44

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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.