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Finding the Fourth Proportional to 1,465.67, 2,199.36 and 541.87

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Solution

The fourth proportional to 1,465.67, 2,199.36 and 541.87 is: 813.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465.67 : 2,199.36 = 541.87 : x
  2. Step 2: Convert to fraction form
    1,465.67/2,199.36 = 541.87/x
  3. Step 3: Cross multiply
    1,465.67x = 2,199.36 × 541.87
  4. Step 4: Simplify right side
    1,465.67x = 1,191,767.20
  5. Step 5: Solve for x
    x = 1,191,767.20/1,465.67
  6. Step 6: Final answer
    x = 813.12

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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.