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Finding the Fourth Proportional to 934.35, 1,289.93 and 585.51

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Solution

The fourth proportional to 934.35, 1,289.93 and 585.51 is: 808.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    934.35 : 1,289.93 = 585.51 : x
  2. Step 2: Convert to fraction form
    934.35/1,289.93 = 585.51/x
  3. Step 3: Cross multiply
    934.35x = 1,289.93 × 585.51
  4. Step 4: Simplify right side
    934.35x = 755,263.99
  5. Step 5: Solve for x
    x = 755,263.99/934.35
  6. Step 6: Final answer
    x = 808.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.