Home / 2,884.52-3,980.40-1,625.64

Finding the Fourth Proportional to 2,884.52, 3,980.40 and 1,625.64

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Solution

The fourth proportional to 2,884.52, 3,980.40 and 1,625.64 is: 2,243.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,884.52 : 3,980.40 = 1,625.64 : x
  2. Step 2: Convert to fraction form
    2,884.52/3,980.40 = 1,625.64/x
  3. Step 3: Cross multiply
    2,884.52x = 3,980.40 × 1,625.64
  4. Step 4: Simplify right side
    2,884.52x = 6,470,697.46
  5. Step 5: Solve for x
    x = 6,470,697.46/2,884.52
  6. Step 6: Final answer
    x = 2,243.25

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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.