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Finding the Fourth Proportional to 1,564.48, 2,345.94 and 833.86

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Solution

The fourth proportional to 1,564.48, 2,345.94 and 833.86 is: 1,250.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564.48 : 2,345.94 = 833.86 : x
  2. Step 2: Convert to fraction form
    1,564.48/2,345.94 = 833.86/x
  3. Step 3: Cross multiply
    1,564.48x = 2,345.94 × 833.86
  4. Step 4: Simplify right side
    1,564.48x = 1,956,185.53
  5. Step 5: Solve for x
    x = 1,956,185.53/1,564.48
  6. Step 6: Final answer
    x = 1,250.37

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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.