Home / 4,977.69-6,868.95-2,739.14

Finding the Fourth Proportional to 4,977.69, 6,868.95 and 2,739.14

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Solution

The fourth proportional to 4,977.69, 6,868.95 and 2,739.14 is: 3,779.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.69 : 6,868.95 = 2,739.14 : x
  2. Step 2: Convert to fraction form
    4,977.69/6,868.95 = 2,739.14/x
  3. Step 3: Cross multiply
    4,977.69x = 6,868.95 × 2,739.14
  4. Step 4: Simplify right side
    4,977.69x = 18,814,981.36
  5. Step 5: Solve for x
    x = 18,814,981.36/4,977.69
  6. Step 6: Final answer
    x = 3,779.86

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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.