Home / 4,977.57-7,464.58-1,645.21

Finding the Fourth Proportional to 4,977.57, 7,464.58 and 1,645.21

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Solution

The fourth proportional to 4,977.57, 7,464.58 and 1,645.21 is: 2,467.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.57 : 7,464.58 = 1,645.21 : x
  2. Step 2: Convert to fraction form
    4,977.57/7,464.58 = 1,645.21/x
  3. Step 3: Cross multiply
    4,977.57x = 7,464.58 × 1,645.21
  4. Step 4: Simplify right side
    4,977.57x = 12,280,756.11
  5. Step 5: Solve for x
    x = 12,280,756.11/4,977.57
  6. Step 6: Final answer
    x = 2,467.22

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1.5x scale

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.