Home / 2,813.63-3,880.46-2,058.35

Finding the Fourth Proportional to 2,813.63, 3,880.46 and 2,058.35

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Solution

The fourth proportional to 2,813.63, 3,880.46 and 2,058.35 is: 2,838.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.63 : 3,880.46 = 2,058.35 : x
  2. Step 2: Convert to fraction form
    2,813.63/3,880.46 = 2,058.35/x
  3. Step 3: Cross multiply
    2,813.63x = 3,880.46 × 2,058.35
  4. Step 4: Simplify right side
    2,813.63x = 7,987,334.55
  5. Step 5: Solve for x
    x = 7,987,334.55/2,813.63
  6. Step 6: Final answer
    x = 2,838.80

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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.