Home / 2,011.95-2,773.01-1,338.55

Finding the Fourth Proportional to 2,011.95, 2,773.01 and 1,338.55

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Solution

The fourth proportional to 2,011.95, 2,773.01 and 1,338.55 is: 1,844.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.95 : 2,773.01 = 1,338.55 : x
  2. Step 2: Convert to fraction form
    2,011.95/2,773.01 = 1,338.55/x
  3. Step 3: Cross multiply
    2,011.95x = 2,773.01 × 1,338.55
  4. Step 4: Simplify right side
    2,011.95x = 3,711,798.67
  5. Step 5: Solve for x
    x = 3,711,798.67/2,011.95
  6. Step 6: Final answer
    x = 1,844.88

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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.