Home / 1,529.14-2,109.72-865.93

Finding the Fourth Proportional to 1,529.14, 2,109.72 and 865.93

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Solution

The fourth proportional to 1,529.14, 2,109.72 and 865.93 is: 1,194.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.14 : 2,109.72 = 865.93 : x
  2. Step 2: Convert to fraction form
    1,529.14/2,109.72 = 865.93/x
  3. Step 3: Cross multiply
    1,529.14x = 2,109.72 × 865.93
  4. Step 4: Simplify right side
    1,529.14x = 1,826,869.84
  5. Step 5: Solve for x
    x = 1,826,869.84/1,529.14
  6. Step 6: Final answer
    x = 1,194.70

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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.