Home / 2,998.16-4,137.99-1,880.05

Finding the Fourth Proportional to 2,998.16, 4,137.99 and 1,880.05

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Solution

The fourth proportional to 2,998.16, 4,137.99 and 1,880.05 is: 2,594.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.16 : 4,137.99 = 1,880.05 : x
  2. Step 2: Convert to fraction form
    2,998.16/4,137.99 = 1,880.05/x
  3. Step 3: Cross multiply
    2,998.16x = 4,137.99 × 1,880.05
  4. Step 4: Simplify right side
    2,998.16x = 7,779,628.10
  5. Step 5: Solve for x
    x = 7,779,628.10/2,998.16
  6. Step 6: Final answer
    x = 2,594.81

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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.