Home / 2,094.73-3,140.90-861.13

Finding the Fourth Proportional to 2,094.73, 3,140.90 and 861.13

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Solution

The fourth proportional to 2,094.73, 3,140.90 and 861.13 is: 1,291.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,094.73 : 3,140.90 = 861.13 : x
  2. Step 2: Convert to fraction form
    2,094.73/3,140.90 = 861.13/x
  3. Step 3: Cross multiply
    2,094.73x = 3,140.90 × 861.13
  4. Step 4: Simplify right side
    2,094.73x = 2,704,707.51
  5. Step 5: Solve for x
    x = 2,704,707.51/2,094.73
  6. Step 6: Final answer
    x = 1,291.20

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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.