Home / 5,083.77-7,624.88-1,386.30

Finding the Fourth Proportional to 5,083.77, 7,624.88 and 1,386.30

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Solution

The fourth proportional to 5,083.77, 7,624.88 and 1,386.30 is: 2,079.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,083.77 : 7,624.88 = 1,386.30 : x
  2. Step 2: Convert to fraction form
    5,083.77/7,624.88 = 1,386.30/x
  3. Step 3: Cross multiply
    5,083.77x = 7,624.88 × 1,386.30
  4. Step 4: Simplify right side
    5,083.77x = 10,570,371.14
  5. Step 5: Solve for x
    x = 10,570,371.14/5,083.77
  6. Step 6: Final answer
    x = 2,079.24

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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.