Home / 1,193.14-1,788.09-900.40

Finding the Fourth Proportional to 1,193.14, 1,788.09 and 900.40

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Solution

The fourth proportional to 1,193.14, 1,788.09 and 900.40 is: 1,349.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.14 : 1,788.09 = 900.40 : x
  2. Step 2: Convert to fraction form
    1,193.14/1,788.09 = 900.40/x
  3. Step 3: Cross multiply
    1,193.14x = 1,788.09 × 900.40
  4. Step 4: Simplify right side
    1,193.14x = 1,609,984.98
  5. Step 5: Solve for x
    x = 1,609,984.98/1,193.14
  6. Step 6: Final answer
    x = 1,349.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.