Home / 4,813.88-6,642.35-2,689.32

Finding the Fourth Proportional to 4,813.88, 6,642.35 and 2,689.32

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Solution

The fourth proportional to 4,813.88, 6,642.35 and 2,689.32 is: 3,710.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,813.88 : 6,642.35 = 2,689.32 : x
  2. Step 2: Convert to fraction form
    4,813.88/6,642.35 = 2,689.32/x
  3. Step 3: Cross multiply
    4,813.88x = 6,642.35 × 2,689.32
  4. Step 4: Simplify right side
    4,813.88x = 17,863,391.26
  5. Step 5: Solve for x
    x = 17,863,391.26/4,813.88
  6. Step 6: Final answer
    x = 3,710.81

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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.