Home / 2,093.04-3,138.37-861.30

Finding the Fourth Proportional to 2,093.04, 3,138.37 and 861.30

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Solution

The fourth proportional to 2,093.04, 3,138.37 and 861.30 is: 1,291.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,093.04 : 3,138.37 = 861.30 : x
  2. Step 2: Convert to fraction form
    2,093.04/3,138.37 = 861.30/x
  3. Step 3: Cross multiply
    2,093.04x = 3,138.37 × 861.30
  4. Step 4: Simplify right side
    2,093.04x = 2,703,075.93
  5. Step 5: Solve for x
    x = 2,703,075.93/2,093.04
  6. Step 6: Final answer
    x = 1,291.46

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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.