Home / 5,108.60-7,661.46-2,190.08

Finding the Fourth Proportional to 5,108.60, 7,661.46 and 2,190.08

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Solution

The fourth proportional to 5,108.60, 7,661.46 and 2,190.08 is: 3,284.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.60 : 7,661.46 = 2,190.08 : x
  2. Step 2: Convert to fraction form
    5,108.60/7,661.46 = 2,190.08/x
  3. Step 3: Cross multiply
    5,108.60x = 7,661.46 × 2,190.08
  4. Step 4: Simplify right side
    5,108.60x = 16,779,210.32
  5. Step 5: Solve for x
    x = 16,779,210.32/5,108.60
  6. Step 6: Final answer
    x = 3,284.50

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Half scale
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Double scale
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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.