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Finding the Fourth Proportional to 1,459.59, 2,189.88 and 637.44

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Solution

The fourth proportional to 1,459.59, 2,189.88 and 637.44 is: 956.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,459.59 : 2,189.88 = 637.44 : x
  2. Step 2: Convert to fraction form
    1,459.59/2,189.88 = 637.44/x
  3. Step 3: Cross multiply
    1,459.59x = 2,189.88 × 637.44
  4. Step 4: Simplify right side
    1,459.59x = 1,395,917.11
  5. Step 5: Solve for x
    x = 1,395,917.11/1,459.59
  6. Step 6: Final answer
    x = 956.38

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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.