Home / 4,938.40-6,815.44-2,814.32

Finding the Fourth Proportional to 4,938.40, 6,815.44 and 2,814.32

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Solution

The fourth proportional to 4,938.40, 6,815.44 and 2,814.32 is: 3,884.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,938.40 : 6,815.44 = 2,814.32 : x
  2. Step 2: Convert to fraction form
    4,938.40/6,815.44 = 2,814.32/x
  3. Step 3: Cross multiply
    4,938.40x = 6,815.44 × 2,814.32
  4. Step 4: Simplify right side
    4,938.40x = 19,180,829.10
  5. Step 5: Solve for x
    x = 19,180,829.10/4,938.40
  6. Step 6: Final answer
    x = 3,884.02

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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.