Home / 5,190.92-7,781.74-1,903.24

Finding the Fourth Proportional to 5,190.92, 7,781.74 and 1,903.24

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Solution

The fourth proportional to 5,190.92, 7,781.74 and 1,903.24 is: 2,853.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.92 : 7,781.74 = 1,903.24 : x
  2. Step 2: Convert to fraction form
    5,190.92/7,781.74 = 1,903.24/x
  3. Step 3: Cross multiply
    5,190.92x = 7,781.74 × 1,903.24
  4. Step 4: Simplify right side
    5,190.92x = 14,810,518.84
  5. Step 5: Solve for x
    x = 14,810,518.84/5,190.92
  6. Step 6: Final answer
    x = 2,853.16

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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.