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Finding the Fourth Proportional to 1,459.62, 2,190.51 and 535.75

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Solution

The fourth proportional to 1,459.62, 2,190.51 and 535.75 is: 804.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,459.62 : 2,190.51 = 535.75 : x
  2. Step 2: Convert to fraction form
    1,459.62/2,190.51 = 535.75/x
  3. Step 3: Cross multiply
    1,459.62x = 2,190.51 × 535.75
  4. Step 4: Simplify right side
    1,459.62x = 1,173,560.26
  5. Step 5: Solve for x
    x = 1,173,560.26/1,459.62
  6. Step 6: Final answer
    x = 804.02

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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.