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Finding the Fourth Proportional to 1,652.99, 2,477.43 and 831.50

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Solution

The fourth proportional to 1,652.99, 2,477.43 and 831.50 is: 1,246.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,652.99 : 2,477.43 = 831.50 : x
  2. Step 2: Convert to fraction form
    1,652.99/2,477.43 = 831.50/x
  3. Step 3: Cross multiply
    1,652.99x = 2,477.43 × 831.50
  4. Step 4: Simplify right side
    1,652.99x = 2,059,983.05
  5. Step 5: Solve for x
    x = 2,059,983.05/1,652.99
  6. Step 6: Final answer
    x = 1,246.22

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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.