Home / 5,546.77-8,320.12-1,386.75

Finding the Fourth Proportional to 5,546.77, 8,320.12 and 1,386.75

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Solution

The fourth proportional to 5,546.77, 8,320.12 and 1,386.75 is: 2,080.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,546.77 : 8,320.12 = 1,386.75 : x
  2. Step 2: Convert to fraction form
    5,546.77/8,320.12 = 1,386.75/x
  3. Step 3: Cross multiply
    5,546.77x = 8,320.12 × 1,386.75
  4. Step 4: Simplify right side
    5,546.77x = 11,537,954.14
  5. Step 5: Solve for x
    x = 11,537,954.14/5,546.77
  6. Step 6: Final answer
    x = 2,080.12

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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.