Home / 4,990.06-6,885.70-2,865.02

Finding the Fourth Proportional to 4,990.06, 6,885.70 and 2,865.02

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Solution

The fourth proportional to 4,990.06, 6,885.70 and 2,865.02 is: 3,953.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.06 : 6,885.70 = 2,865.02 : x
  2. Step 2: Convert to fraction form
    4,990.06/6,885.70 = 2,865.02/x
  3. Step 3: Cross multiply
    4,990.06x = 6,885.70 × 2,865.02
  4. Step 4: Simplify right side
    4,990.06x = 19,727,668.21
  5. Step 5: Solve for x
    x = 19,727,668.21/4,990.06
  6. Step 6: Final answer
    x = 3,953.39

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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.