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Finding the Fourth Proportional to 943.14, 1,302.98 and 804.68

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Solution

The fourth proportional to 943.14, 1,302.98 and 804.68 is: 1,111.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    943.14 : 1,302.98 = 804.68 : x
  2. Step 2: Convert to fraction form
    943.14/1,302.98 = 804.68/x
  3. Step 3: Cross multiply
    943.14x = 1,302.98 × 804.68
  4. Step 4: Simplify right side
    943.14x = 1,048,471.41
  5. Step 5: Solve for x
    x = 1,048,471.41/943.14
  6. Step 6: Final answer
    x = 1,111.68

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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.