Home / 1,465.09-2,021.68-835.72

Finding the Fourth Proportional to 1,465.09, 2,021.68 and 835.72

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Solution

The fourth proportional to 1,465.09, 2,021.68 and 835.72 is: 1,153.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465.09 : 2,021.68 = 835.72 : x
  2. Step 2: Convert to fraction form
    1,465.09/2,021.68 = 835.72/x
  3. Step 3: Cross multiply
    1,465.09x = 2,021.68 × 835.72
  4. Step 4: Simplify right side
    1,465.09x = 1,689,558.41
  5. Step 5: Solve for x
    x = 1,689,558.41/1,465.09
  6. Step 6: Final answer
    x = 1,153.21

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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.