Home / 4,977.15-7,465.95-2,784.21

Finding the Fourth Proportional to 4,977.15, 7,465.95 and 2,784.21

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Solution

The fourth proportional to 4,977.15, 7,465.95 and 2,784.21 is: 4,176.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.15 : 7,465.95 = 2,784.21 : x
  2. Step 2: Convert to fraction form
    4,977.15/7,465.95 = 2,784.21/x
  3. Step 3: Cross multiply
    4,977.15x = 7,465.95 × 2,784.21
  4. Step 4: Simplify right side
    4,977.15x = 20,786,772.65
  5. Step 5: Solve for x
    x = 20,786,772.65/4,977.15
  6. Step 6: Final answer
    x = 4,176.44

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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.