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Finding the Fourth Proportional to 1,955.50, 2,692.60 and 1,798.76

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Solution

The fourth proportional to 1,955.50, 2,692.60 and 1,798.76 is: 2,476.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.50 : 2,692.60 = 1,798.76 : x
  2. Step 2: Convert to fraction form
    1,955.50/2,692.60 = 1,798.76/x
  3. Step 3: Cross multiply
    1,955.50x = 2,692.60 × 1,798.76
  4. Step 4: Simplify right side
    1,955.50x = 4,843,343.41
  5. Step 5: Solve for x
    x = 4,843,343.41/1,955.50
  6. Step 6: Final answer
    x = 2,476.78

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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.