Home / 5,118.49-7,062.80-2,880.26

Finding the Fourth Proportional to 5,118.49, 7,062.80 and 2,880.26

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Solution

The fourth proportional to 5,118.49, 7,062.80 and 2,880.26 is: 3,974.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.49 : 7,062.80 = 2,880.26 : x
  2. Step 2: Convert to fraction form
    5,118.49/7,062.80 = 2,880.26/x
  3. Step 3: Cross multiply
    5,118.49x = 7,062.80 × 2,880.26
  4. Step 4: Simplify right side
    5,118.49x = 20,342,677.10
  5. Step 5: Solve for x
    x = 20,342,677.10/5,118.49
  6. Step 6: Final answer
    x = 3,974.35

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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.