Home / 5,122.15-7,068.95-2,884.27

Finding the Fourth Proportional to 5,122.15, 7,068.95 and 2,884.27

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Solution

The fourth proportional to 5,122.15, 7,068.95 and 2,884.27 is: 3,980.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.15 : 7,068.95 = 2,884.27 : x
  2. Step 2: Convert to fraction form
    5,122.15/7,068.95 = 2,884.27/x
  3. Step 3: Cross multiply
    5,122.15x = 7,068.95 × 2,884.27
  4. Step 4: Simplify right side
    5,122.15x = 20,388,746.00
  5. Step 5: Solve for x
    x = 20,388,746.00/5,122.15
  6. Step 6: Final answer
    x = 3,980.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.