Home / 2,013.64-2,777.70-1,227.40

Finding the Fourth Proportional to 2,013.64, 2,777.70 and 1,227.40

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Solution

The fourth proportional to 2,013.64, 2,777.70 and 1,227.40 is: 1,693.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013.64 : 2,777.70 = 1,227.40 : x
  2. Step 2: Convert to fraction form
    2,013.64/2,777.70 = 1,227.40/x
  3. Step 3: Cross multiply
    2,013.64x = 2,777.70 × 1,227.40
  4. Step 4: Simplify right side
    2,013.64x = 3,409,348.98
  5. Step 5: Solve for x
    x = 3,409,348.98/2,013.64
  6. Step 6: Final answer
    x = 1,693.13

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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.