Home / 2,884.18-3,980.08-1,625.21

Finding the Fourth Proportional to 2,884.18, 3,980.08 and 1,625.21

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Solution

The fourth proportional to 2,884.18, 3,980.08 and 1,625.21 is: 2,242.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,884.18 : 3,980.08 = 1,625.21 : x
  2. Step 2: Convert to fraction form
    2,884.18/3,980.08 = 1,625.21/x
  3. Step 3: Cross multiply
    2,884.18x = 3,980.08 × 1,625.21
  4. Step 4: Simplify right side
    2,884.18x = 6,468,465.82
  5. Step 5: Solve for x
    x = 6,468,465.82/2,884.18
  6. Step 6: Final answer
    x = 2,242.74

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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.