Home / 4,678.98-6,456.74-2,910.57

Finding the Fourth Proportional to 4,678.98, 6,456.74 and 2,910.57

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Solution

The fourth proportional to 4,678.98, 6,456.74 and 2,910.57 is: 4,016.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.98 : 6,456.74 = 2,910.57 : x
  2. Step 2: Convert to fraction form
    4,678.98/6,456.74 = 2,910.57/x
  3. Step 3: Cross multiply
    4,678.98x = 6,456.74 × 2,910.57
  4. Step 4: Simplify right side
    4,678.98x = 18,792,779.19
  5. Step 5: Solve for x
    x = 18,792,779.19/4,678.98
  6. Step 6: Final answer
    x = 4,016.43

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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.