Home / 2,889.07-4,331.78-1,591.45

Finding the Fourth Proportional to 2,889.07, 4,331.78 and 1,591.45

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Solution

The fourth proportional to 2,889.07, 4,331.78 and 1,591.45 is: 2,386.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.07 : 4,331.78 = 1,591.45 : x
  2. Step 2: Convert to fraction form
    2,889.07/4,331.78 = 1,591.45/x
  3. Step 3: Cross multiply
    2,889.07x = 4,331.78 × 1,591.45
  4. Step 4: Simplify right side
    2,889.07x = 6,893,798.46
  5. Step 5: Solve for x
    x = 6,893,798.46/2,889.07
  6. Step 6: Final answer
    x = 2,386.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.