Home / 4,928.40-6,801.21-2,690.32

Finding the Fourth Proportional to 4,928.40, 6,801.21 and 2,690.32

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Solution

The fourth proportional to 4,928.40, 6,801.21 and 2,690.32 is: 3,712.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.40 : 6,801.21 = 2,690.32 : x
  2. Step 2: Convert to fraction form
    4,928.40/6,801.21 = 2,690.32/x
  3. Step 3: Cross multiply
    4,928.40x = 6,801.21 × 2,690.32
  4. Step 4: Simplify right side
    4,928.40x = 18,297,417.84
  5. Step 5: Solve for x
    x = 18,297,417.84/4,928.40
  6. Step 6: Final answer
    x = 3,712.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.