Home / 1,921.23-2,651.36-1,134.99

Finding the Fourth Proportional to 1,921.23, 2,651.36 and 1,134.99

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Solution

The fourth proportional to 1,921.23, 2,651.36 and 1,134.99 is: 1,566.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.23 : 2,651.36 = 1,134.99 : x
  2. Step 2: Convert to fraction form
    1,921.23/2,651.36 = 1,134.99/x
  3. Step 3: Cross multiply
    1,921.23x = 2,651.36 × 1,134.99
  4. Step 4: Simplify right side
    1,921.23x = 3,009,261.41
  5. Step 5: Solve for x
    x = 3,009,261.41/1,921.23
  6. Step 6: Final answer
    x = 1,566.32

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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.