Home / 5,039.56-7,558.68-1,918.72

Finding the Fourth Proportional to 5,039.56, 7,558.68 and 1,918.72

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Solution

The fourth proportional to 5,039.56, 7,558.68 and 1,918.72 is: 2,877.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,039.56 : 7,558.68 = 1,918.72 : x
  2. Step 2: Convert to fraction form
    5,039.56/7,558.68 = 1,918.72/x
  3. Step 3: Cross multiply
    5,039.56x = 7,558.68 × 1,918.72
  4. Step 4: Simplify right side
    5,039.56x = 14,502,990.49
  5. Step 5: Solve for x
    x = 14,502,990.49/5,039.56
  6. Step 6: Final answer
    x = 2,877.83

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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.