Home / 4,853.57-7,280.36-2,078.45

Finding the Fourth Proportional to 4,853.57, 7,280.36 and 2,078.45

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Solution

The fourth proportional to 4,853.57, 7,280.36 and 2,078.45 is: 3,117.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,853.57 : 7,280.36 = 2,078.45 : x
  2. Step 2: Convert to fraction form
    4,853.57/7,280.36 = 2,078.45/x
  3. Step 3: Cross multiply
    4,853.57x = 7,280.36 × 2,078.45
  4. Step 4: Simplify right side
    4,853.57x = 15,131,887.64
  5. Step 5: Solve for x
    x = 15,131,887.64/4,853.57
  6. Step 6: Final answer
    x = 3,117.68

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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.