Home / 4,721.58-6,511.91-4,190.85

Finding the Fourth Proportional to 4,721.58, 6,511.91 and 4,190.85

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Solution

The fourth proportional to 4,721.58, 6,511.91 and 4,190.85 is: 5,779.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,721.58 : 6,511.91 = 4,190.85 : x
  2. Step 2: Convert to fraction form
    4,721.58/6,511.91 = 4,190.85/x
  3. Step 3: Cross multiply
    4,721.58x = 6,511.91 × 4,190.85
  4. Step 4: Simplify right side
    4,721.58x = 27,290,417.07
  5. Step 5: Solve for x
    x = 27,290,417.07/4,721.58
  6. Step 6: Final answer
    x = 5,779.93

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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.