Home / 5,284.21-7,925.71-1,388.92

Finding the Fourth Proportional to 5,284.21, 7,925.71 and 1,388.92

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Solution

The fourth proportional to 5,284.21, 7,925.71 and 1,388.92 is: 2,083.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,284.21 : 7,925.71 = 1,388.92 : x
  2. Step 2: Convert to fraction form
    5,284.21/7,925.71 = 1,388.92/x
  3. Step 3: Cross multiply
    5,284.21x = 7,925.71 × 1,388.92
  4. Step 4: Simplify right side
    5,284.21x = 11,008,177.13
  5. Step 5: Solve for x
    x = 11,008,177.13/5,284.21
  6. Step 6: Final answer
    x = 2,083.22

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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.