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Finding the Fourth Proportional to 2,533.68, 3,800.40 and 890.10

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Solution

The fourth proportional to 2,533.68, 3,800.40 and 890.10 is: 1,335.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,533.68 : 3,800.40 = 890.10 : x
  2. Step 2: Convert to fraction form
    2,533.68/3,800.40 = 890.10/x
  3. Step 3: Cross multiply
    2,533.68x = 3,800.40 × 890.10
  4. Step 4: Simplify right side
    2,533.68x = 3,382,736.04
  5. Step 5: Solve for x
    x = 3,382,736.04/2,533.68
  6. Step 6: Final answer
    x = 1,335.11

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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.