Home / 4,790.21-7,184.77-1,280.58

Finding the Fourth Proportional to 4,790.21, 7,184.77 and 1,280.58

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Solution

The fourth proportional to 4,790.21, 7,184.77 and 1,280.58 is: 1,920.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,790.21 : 7,184.77 = 1,280.58 : x
  2. Step 2: Convert to fraction form
    4,790.21/7,184.77 = 1,280.58/x
  3. Step 3: Cross multiply
    4,790.21x = 7,184.77 × 1,280.58
  4. Step 4: Simplify right side
    4,790.21x = 9,200,642.62
  5. Step 5: Solve for x
    x = 9,200,642.62/4,790.21
  6. Step 6: Final answer
    x = 1,920.72

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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.