Home / 1,465.35-2,021.78-941.68

Finding the Fourth Proportional to 1,465.35, 2,021.78 and 941.68

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Solution

The fourth proportional to 1,465.35, 2,021.78 and 941.68 is: 1,299.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465.35 : 2,021.78 = 941.68 : x
  2. Step 2: Convert to fraction form
    1,465.35/2,021.78 = 941.68/x
  3. Step 3: Cross multiply
    1,465.35x = 2,021.78 × 941.68
  4. Step 4: Simplify right side
    1,465.35x = 1,903,869.37
  5. Step 5: Solve for x
    x = 1,903,869.37/1,465.35
  6. Step 6: Final answer
    x = 1,299.26

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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.