Home / 5,039.79-7,554.61-1,918.99

Finding the Fourth Proportional to 5,039.79, 7,554.61 and 1,918.99

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Solution

The fourth proportional to 5,039.79, 7,554.61 and 1,918.99 is: 2,876.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,039.79 : 7,554.61 = 1,918.99 : x
  2. Step 2: Convert to fraction form
    5,039.79/7,554.61 = 1,918.99/x
  3. Step 3: Cross multiply
    5,039.79x = 7,554.61 × 1,918.99
  4. Step 4: Simplify right side
    5,039.79x = 14,497,221.04
  5. Step 5: Solve for x
    x = 14,497,221.04/5,039.79
  6. Step 6: Final answer
    x = 2,876.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.