Home / 4,977.02-6,868.40-2,738.99

Finding the Fourth Proportional to 4,977.02, 6,868.40 and 2,738.99

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Solution

The fourth proportional to 4,977.02, 6,868.40 and 2,738.99 is: 3,779.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.02 : 6,868.40 = 2,738.99 : x
  2. Step 2: Convert to fraction form
    4,977.02/6,868.40 = 2,738.99/x
  3. Step 3: Cross multiply
    4,977.02x = 6,868.40 × 2,738.99
  4. Step 4: Simplify right side
    4,977.02x = 18,812,463.07
  5. Step 5: Solve for x
    x = 18,812,463.07/4,977.02
  6. Step 6: Final answer
    x = 3,779.87

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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.