Home / 4,977.07-7,463.08-2,785.21

Finding the Fourth Proportional to 4,977.07, 7,463.08 and 2,785.21

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Solution

The fourth proportional to 4,977.07, 7,463.08 and 2,785.21 is: 4,176.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.07 : 7,463.08 = 2,785.21 : x
  2. Step 2: Convert to fraction form
    4,977.07/7,463.08 = 2,785.21/x
  3. Step 3: Cross multiply
    4,977.07x = 7,463.08 × 2,785.21
  4. Step 4: Simplify right side
    4,977.07x = 20,786,193.81
  5. Step 5: Solve for x
    x = 20,786,193.81/4,977.07
  6. Step 6: Final answer
    x = 4,176.40

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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.