Home / 4,991.19-7,487.55-1,660.20

Finding the Fourth Proportional to 4,991.19, 7,487.55 and 1,660.20

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Solution

The fourth proportional to 4,991.19, 7,487.55 and 1,660.20 is: 2,490.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.19 : 7,487.55 = 1,660.20 : x
  2. Step 2: Convert to fraction form
    4,991.19/7,487.55 = 1,660.20/x
  3. Step 3: Cross multiply
    4,991.19x = 7,487.55 × 1,660.20
  4. Step 4: Simplify right side
    4,991.19x = 12,430,830.51
  5. Step 5: Solve for x
    x = 12,430,830.51/4,991.19
  6. Step 6: Final answer
    x = 2,490.55

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Half scale
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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.