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Finding the Fourth Proportional to 673.51, 933.41 and 663.26

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Solution

The fourth proportional to 673.51, 933.41 and 663.26 is: 919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.51 : 933.41 = 663.26 : x
  2. Step 2: Convert to fraction form
    673.51/933.41 = 663.26/x
  3. Step 3: Cross multiply
    673.51x = 933.41 × 663.26
  4. Step 4: Simplify right side
    673.51x = 619,093.52
  5. Step 5: Solve for x
    x = 619,093.52/673.51
  6. Step 6: Final answer
    x = 919.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.