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Finding the Fourth Proportional to 941.52, 1,298.52 and 936.66

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Solution

The fourth proportional to 941.52, 1,298.52 and 936.66 is: 1,291.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.52 : 1,298.52 = 936.66 : x
  2. Step 2: Convert to fraction form
    941.52/1,298.52 = 936.66/x
  3. Step 3: Cross multiply
    941.52x = 1,298.52 × 936.66
  4. Step 4: Simplify right side
    941.52x = 1,216,271.74
  5. Step 5: Solve for x
    x = 1,216,271.74/941.52
  6. Step 6: Final answer
    x = 1,291.82

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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.