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Finding the Fourth Proportional to 1,197.99, 1,652.10 and 945.42

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Solution

The fourth proportional to 1,197.99, 1,652.10 and 945.42 is: 1,303.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197.99 : 1,652.10 = 945.42 : x
  2. Step 2: Convert to fraction form
    1,197.99/1,652.10 = 945.42/x
  3. Step 3: Cross multiply
    1,197.99x = 1,652.10 × 945.42
  4. Step 4: Simplify right side
    1,197.99x = 1,561,927.93
  5. Step 5: Solve for x
    x = 1,561,927.93/1,197.99
  6. Step 6: Final answer
    x = 1,303.79

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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.