Home / 2,038.56-2,811.96-1,777.20

Finding the Fourth Proportional to 2,038.56, 2,811.96 and 1,777.20

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Solution

The fourth proportional to 2,038.56, 2,811.96 and 1,777.20 is: 2,451.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,038.56 : 2,811.96 = 1,777.20 : x
  2. Step 2: Convert to fraction form
    2,038.56/2,811.96 = 1,777.20/x
  3. Step 3: Cross multiply
    2,038.56x = 2,811.96 × 1,777.20
  4. Step 4: Simplify right side
    2,038.56x = 4,997,415.31
  5. Step 5: Solve for x
    x = 4,997,415.31/2,038.56
  6. Step 6: Final answer
    x = 2,451.44

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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.