Home / 2,929.43-4,039.54-1,933.40

Finding the Fourth Proportional to 2,929.43, 4,039.54 and 1,933.40

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Solution

The fourth proportional to 2,929.43, 4,039.54 and 1,933.40 is: 2,666.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.43 : 4,039.54 = 1,933.40 : x
  2. Step 2: Convert to fraction form
    2,929.43/4,039.54 = 1,933.40/x
  3. Step 3: Cross multiply
    2,929.43x = 4,039.54 × 1,933.40
  4. Step 4: Simplify right side
    2,929.43x = 7,810,021.60
  5. Step 5: Solve for x
    x = 7,810,021.60/2,929.43
  6. Step 6: Final answer
    x = 2,666.06

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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.