Home / 4,977.64-6,868.74-2,739.16

Finding the Fourth Proportional to 4,977.64, 6,868.74 and 2,739.16

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Solution

The fourth proportional to 4,977.64, 6,868.74 and 2,739.16 is: 3,779.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.64 : 6,868.74 = 2,739.16 : x
  2. Step 2: Convert to fraction form
    4,977.64/6,868.74 = 2,739.16/x
  3. Step 3: Cross multiply
    4,977.64x = 6,868.74 × 2,739.16
  4. Step 4: Simplify right side
    4,977.64x = 18,814,577.86
  5. Step 5: Solve for x
    x = 18,814,577.86/4,977.64
  6. Step 6: Final answer
    x = 3,779.82

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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.