Home / 5,190.45-7,784.46-1,901.76

Finding the Fourth Proportional to 5,190.45, 7,784.46 and 1,901.76

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Solution

The fourth proportional to 5,190.45, 7,784.46 and 1,901.76 is: 2,852.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.45 : 7,784.46 = 1,901.76 : x
  2. Step 2: Convert to fraction form
    5,190.45/7,784.46 = 1,901.76/x
  3. Step 3: Cross multiply
    5,190.45x = 7,784.46 × 1,901.76
  4. Step 4: Simplify right side
    5,190.45x = 14,804,174.65
  5. Step 5: Solve for x
    x = 14,804,174.65/5,190.45
  6. Step 6: Final answer
    x = 2,852.19

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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.