Home / 4,991.22-6,889.59-2,897.10

Finding the Fourth Proportional to 4,991.22, 6,889.59 and 2,897.10

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Solution

The fourth proportional to 4,991.22, 6,889.59 and 2,897.10 is: 3,998.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.22 : 6,889.59 = 2,897.10 : x
  2. Step 2: Convert to fraction form
    4,991.22/6,889.59 = 2,897.10/x
  3. Step 3: Cross multiply
    4,991.22x = 6,889.59 × 2,897.10
  4. Step 4: Simplify right side
    4,991.22x = 19,959,831.19
  5. Step 5: Solve for x
    x = 19,959,831.19/4,991.22
  6. Step 6: Final answer
    x = 3,998.99

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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.