Home / 1,529.85-2,109.81-1,294.31

Finding the Fourth Proportional to 1,529.85, 2,109.81 and 1,294.31

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Solution

The fourth proportional to 1,529.85, 2,109.81 and 1,294.31 is: 1,784.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.85 : 2,109.81 = 1,294.31 : x
  2. Step 2: Convert to fraction form
    1,529.85/2,109.81 = 1,294.31/x
  3. Step 3: Cross multiply
    1,529.85x = 2,109.81 × 1,294.31
  4. Step 4: Simplify right side
    1,529.85x = 2,730,737.63
  5. Step 5: Solve for x
    x = 2,730,737.63/1,529.85
  6. Step 6: Final answer
    x = 1,784.97

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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.