Home / 4,911.74-6,779.50-2,921.92

Finding the Fourth Proportional to 4,911.74, 6,779.50 and 2,921.92

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Solution

The fourth proportional to 4,911.74, 6,779.50 and 2,921.92 is: 4,033.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.74 : 6,779.50 = 2,921.92 : x
  2. Step 2: Convert to fraction form
    4,911.74/6,779.50 = 2,921.92/x
  3. Step 3: Cross multiply
    4,911.74x = 6,779.50 × 2,921.92
  4. Step 4: Simplify right side
    4,911.74x = 19,809,156.64
  5. Step 5: Solve for x
    x = 19,809,156.64/4,911.74
  6. Step 6: Final answer
    x = 4,033.02

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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.