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Finding the Fourth Proportional to 1,168.27, 1,612.19 and 670.93

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Solution

The fourth proportional to 1,168.27, 1,612.19 and 670.93 is: 925.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.27 : 1,612.19 = 670.93 : x
  2. Step 2: Convert to fraction form
    1,168.27/1,612.19 = 670.93/x
  3. Step 3: Cross multiply
    1,168.27x = 1,612.19 × 670.93
  4. Step 4: Simplify right side
    1,168.27x = 1,081,664.28
  5. Step 5: Solve for x
    x = 1,081,664.28/1,168.27
  6. Step 6: Final answer
    x = 925.87

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1.5x scale

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.