Home / 6,386.91-8,813.77-3,554.27

Finding the Fourth Proportional to 6,386.91, 8,813.77 and 3,554.27

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Solution

The fourth proportional to 6,386.91, 8,813.77 and 3,554.27 is: 4,904.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.91 : 8,813.77 = 3,554.27 : x
  2. Step 2: Convert to fraction form
    6,386.91/8,813.77 = 3,554.27/x
  3. Step 3: Cross multiply
    6,386.91x = 8,813.77 × 3,554.27
  4. Step 4: Simplify right side
    6,386.91x = 31,326,518.30
  5. Step 5: Solve for x
    x = 31,326,518.30/6,386.91
  6. Step 6: Final answer
    x = 4,904.80

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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.