Home / 4,990.23-6,886.69-3,102.03

Finding the Fourth Proportional to 4,990.23, 6,886.69 and 3,102.03

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Solution

The fourth proportional to 4,990.23, 6,886.69 and 3,102.03 is: 4,280.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.23 : 6,886.69 = 3,102.03 : x
  2. Step 2: Convert to fraction form
    4,990.23/6,886.69 = 3,102.03/x
  3. Step 3: Cross multiply
    4,990.23x = 6,886.69 × 3,102.03
  4. Step 4: Simplify right side
    4,990.23x = 21,362,711.23
  5. Step 5: Solve for x
    x = 21,362,711.23/4,990.23
  6. Step 6: Final answer
    x = 4,280.91

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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.