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Finding the Fourth Proportional to 1,181.99, 1,630.82 and 703.37

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Solution

The fourth proportional to 1,181.99, 1,630.82 and 703.37 is: 970.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181.99 : 1,630.82 = 703.37 : x
  2. Step 2: Convert to fraction form
    1,181.99/1,630.82 = 703.37/x
  3. Step 3: Cross multiply
    1,181.99x = 1,630.82 × 703.37
  4. Step 4: Simplify right side
    1,181.99x = 1,147,058.19
  5. Step 5: Solve for x
    x = 1,147,058.19/1,181.99
  6. Step 6: Final answer
    x = 970.45

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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.