Home / 4,938.64-6,814.73-2,813.40

Finding the Fourth Proportional to 4,938.64, 6,814.73 and 2,813.40

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Solution

The fourth proportional to 4,938.64, 6,814.73 and 2,813.40 is: 3,882.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,938.64 : 6,814.73 = 2,813.40 : x
  2. Step 2: Convert to fraction form
    4,938.64/6,814.73 = 2,813.40/x
  3. Step 3: Cross multiply
    4,938.64x = 6,814.73 × 2,813.40
  4. Step 4: Simplify right side
    4,938.64x = 19,172,568.42
  5. Step 5: Solve for x
    x = 19,172,568.42/4,938.64
  6. Step 6: Final answer
    x = 3,882.16

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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.