Home / 5,190.08-7,785.12-1,903.44

Finding the Fourth Proportional to 5,190.08, 7,785.12 and 1,903.44

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Solution

The fourth proportional to 5,190.08, 7,785.12 and 1,903.44 is: 2,855.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.08 : 7,785.12 = 1,903.44 : x
  2. Step 2: Convert to fraction form
    5,190.08/7,785.12 = 1,903.44/x
  3. Step 3: Cross multiply
    5,190.08x = 7,785.12 × 1,903.44
  4. Step 4: Simplify right side
    5,190.08x = 14,818,508.81
  5. Step 5: Solve for x
    x = 14,818,508.81/5,190.08
  6. Step 6: Final answer
    x = 2,855.16

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Double scale
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Similar ratio
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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.