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Finding the Fourth Proportional to 1,173.55, 1,619.49 and 701.65

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Solution

The fourth proportional to 1,173.55, 1,619.49 and 701.65 is: 968.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173.55 : 1,619.49 = 701.65 : x
  2. Step 2: Convert to fraction form
    1,173.55/1,619.49 = 701.65/x
  3. Step 3: Cross multiply
    1,173.55x = 1,619.49 × 701.65
  4. Step 4: Simplify right side
    1,173.55x = 1,136,315.16
  5. Step 5: Solve for x
    x = 1,136,315.16/1,173.55
  6. Step 6: Final answer
    x = 968.27

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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.