Home / 2,975.48-4,105.68-1,856.24

Finding the Fourth Proportional to 2,975.48, 4,105.68 and 1,856.24

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Solution

The fourth proportional to 2,975.48, 4,105.68 and 1,856.24 is: 2,561.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.48 : 4,105.68 = 1,856.24 : x
  2. Step 2: Convert to fraction form
    2,975.48/4,105.68 = 1,856.24/x
  3. Step 3: Cross multiply
    2,975.48x = 4,105.68 × 1,856.24
  4. Step 4: Simplify right side
    2,975.48x = 7,621,127.44
  5. Step 5: Solve for x
    x = 7,621,127.44/2,975.48
  6. Step 6: Final answer
    x = 2,561.31

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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.