Home / 2,057.12-2,838.81-1,173.20

Finding the Fourth Proportional to 2,057.12, 2,838.81 and 1,173.20

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Solution

The fourth proportional to 2,057.12, 2,838.81 and 1,173.20 is: 1,619.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,057.12 : 2,838.81 = 1,173.20 : x
  2. Step 2: Convert to fraction form
    2,057.12/2,838.81 = 1,173.20/x
  3. Step 3: Cross multiply
    2,057.12x = 2,838.81 × 1,173.20
  4. Step 4: Simplify right side
    2,057.12x = 3,330,477.70
  5. Step 5: Solve for x
    x = 3,330,477.70/2,057.12
  6. Step 6: Final answer
    x = 1,619.00

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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.