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Finding the Fourth Proportional to 1,863.64, 2,795.10 and 890.92

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Solution

The fourth proportional to 1,863.64, 2,795.10 and 890.92 is: 1,336.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863.64 : 2,795.10 = 890.92 : x
  2. Step 2: Convert to fraction form
    1,863.64/2,795.10 = 890.92/x
  3. Step 3: Cross multiply
    1,863.64x = 2,795.10 × 890.92
  4. Step 4: Simplify right side
    1,863.64x = 2,490,210.49
  5. Step 5: Solve for x
    x = 2,490,210.49/1,863.64
  6. Step 6: Final answer
    x = 1,336.21

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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.