Home / 2,431.47-3,355.05-1,644.75

Finding the Fourth Proportional to 2,431.47, 3,355.05 and 1,644.75

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Solution

The fourth proportional to 2,431.47, 3,355.05 and 1,644.75 is: 2,269.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.47 : 3,355.05 = 1,644.75 : x
  2. Step 2: Convert to fraction form
    2,431.47/3,355.05 = 1,644.75/x
  3. Step 3: Cross multiply
    2,431.47x = 3,355.05 × 1,644.75
  4. Step 4: Simplify right side
    2,431.47x = 5,518,218.49
  5. Step 5: Solve for x
    x = 5,518,218.49/2,431.47
  6. Step 6: Final answer
    x = 2,269.50

Related Problems

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Half scale
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Double scale
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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.