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Finding the Fourth Proportional to 883.75, 1,316.29 and 837.49

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Solution

The fourth proportional to 883.75, 1,316.29 and 837.49 is: 1,247.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.75 : 1,316.29 = 837.49 : x
  2. Step 2: Convert to fraction form
    883.75/1,316.29 = 837.49/x
  3. Step 3: Cross multiply
    883.75x = 1,316.29 × 837.49
  4. Step 4: Simplify right side
    883.75x = 1,102,379.71
  5. Step 5: Solve for x
    x = 1,102,379.71/883.75
  6. Step 6: Final answer
    x = 1,247.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.