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Finding the Fourth Proportional to 2,897.95, 3,995.46 and 1,901.50

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Solution

The fourth proportional to 2,897.95, 3,995.46 and 1,901.50 is: 2,621.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.95 : 3,995.46 = 1,901.50 : x
  2. Step 2: Convert to fraction form
    2,897.95/3,995.46 = 1,901.50/x
  3. Step 3: Cross multiply
    2,897.95x = 3,995.46 × 1,901.50
  4. Step 4: Simplify right side
    2,897.95x = 7,597,367.19
  5. Step 5: Solve for x
    x = 7,597,367.19/2,897.95
  6. Step 6: Final answer
    x = 2,621.64

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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.