Home / 4,284.60-6,390.75-3,907.32

Finding the Fourth Proportional to 4,284.60, 6,390.75 and 3,907.32

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Solution

The fourth proportional to 4,284.60, 6,390.75 and 3,907.32 is: 5,828.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,284.60 : 6,390.75 = 3,907.32 : x
  2. Step 2: Convert to fraction form
    4,284.60/6,390.75 = 3,907.32/x
  3. Step 3: Cross multiply
    4,284.60x = 6,390.75 × 3,907.32
  4. Step 4: Simplify right side
    4,284.60x = 24,970,705.29
  5. Step 5: Solve for x
    x = 24,970,705.29/4,284.60
  6. Step 6: Final answer
    x = 5,828.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.