Home / 1,529.90-2,109.40-1,293.44

Finding the Fourth Proportional to 1,529.90, 2,109.40 and 1,293.44

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Solution

The fourth proportional to 1,529.90, 2,109.40 and 1,293.44 is: 1,783.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.90 : 2,109.40 = 1,293.44 : x
  2. Step 2: Convert to fraction form
    1,529.90/2,109.40 = 1,293.44/x
  3. Step 3: Cross multiply
    1,529.90x = 2,109.40 × 1,293.44
  4. Step 4: Simplify right side
    1,529.90x = 2,728,387.61
  5. Step 5: Solve for x
    x = 2,728,387.61/1,529.90
  6. Step 6: Final answer
    x = 1,783.37

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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.