Home / 5,501-8,250.56-1,990.34

Finding the Fourth Proportional to 5,501, 8,250.56 and 1,990.34

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Solution

The fourth proportional to 5,501, 8,250.56 and 1,990.34 is: 2,985.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,501 : 8,250.56 = 1,990.34 : x
  2. Step 2: Convert to fraction form
    5,501/8,250.56 = 1,990.34/x
  3. Step 3: Cross multiply
    5,501x = 8,250.56 × 1,990.34
  4. Step 4: Simplify right side
    5,501x = 16,421,419.59
  5. Step 5: Solve for x
    x = 16,421,419.59/5,501
  6. Step 6: Final answer
    x = 2,985.17

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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.