Home / 3,187.48-4,781.10-1,897.16

Finding the Fourth Proportional to 3,187.48, 4,781.10 and 1,897.16

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Solution

The fourth proportional to 3,187.48, 4,781.10 and 1,897.16 is: 2,845.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.48 : 4,781.10 = 1,897.16 : x
  2. Step 2: Convert to fraction form
    3,187.48/4,781.10 = 1,897.16/x
  3. Step 3: Cross multiply
    3,187.48x = 4,781.10 × 1,897.16
  4. Step 4: Simplify right side
    3,187.48x = 9,070,511.68
  5. Step 5: Solve for x
    x = 9,070,511.68/3,187.48
  6. Step 6: Final answer
    x = 2,845.67

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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.