Home / 7,091.47-10,637.19-1,897.21

Finding the Fourth Proportional to 7,091.47, 10,637.19 and 1,897.21

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Solution

The fourth proportional to 7,091.47, 10,637.19 and 1,897.21 is: 2,845.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.47 : 10,637.19 = 1,897.21 : x
  2. Step 2: Convert to fraction form
    7,091.47/10,637.19 = 1,897.21/x
  3. Step 3: Cross multiply
    7,091.47x = 10,637.19 × 1,897.21
  4. Step 4: Simplify right side
    7,091.47x = 20,180,983.24
  5. Step 5: Solve for x
    x = 20,180,983.24/7,091.47
  6. Step 6: Final answer
    x = 2,845.81

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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.