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Finding the Fourth Proportional to 1,529.42, 2,110.42 and 866.26

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Solution

The fourth proportional to 1,529.42, 2,110.42 and 866.26 is: 1,195.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.42 : 2,110.42 = 866.26 : x
  2. Step 2: Convert to fraction form
    1,529.42/2,110.42 = 866.26/x
  3. Step 3: Cross multiply
    1,529.42x = 2,110.42 × 866.26
  4. Step 4: Simplify right side
    1,529.42x = 1,828,172.43
  5. Step 5: Solve for x
    x = 1,828,172.43/1,529.42
  6. Step 6: Final answer
    x = 1,195.34

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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.