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Finding the Fourth Proportional to 1,462.69, 2,000.63 and 1,440.01

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Solution

The fourth proportional to 1,462.69, 2,000.63 and 1,440.01 is: 1,969.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,462.69 : 2,000.63 = 1,440.01 : x
  2. Step 2: Convert to fraction form
    1,462.69/2,000.63 = 1,440.01/x
  3. Step 3: Cross multiply
    1,462.69x = 2,000.63 × 1,440.01
  4. Step 4: Simplify right side
    1,462.69x = 2,880,927.21
  5. Step 5: Solve for x
    x = 2,880,927.21/1,462.69
  6. Step 6: Final answer
    x = 1,969.61

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.