Home / 2,945.09-4,412.43-1,555.36

Finding the Fourth Proportional to 2,945.09, 4,412.43 and 1,555.36

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Solution

The fourth proportional to 2,945.09, 4,412.43 and 1,555.36 is: 2,330.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.09 : 4,412.43 = 1,555.36 : x
  2. Step 2: Convert to fraction form
    2,945.09/4,412.43 = 1,555.36/x
  3. Step 3: Cross multiply
    2,945.09x = 4,412.43 × 1,555.36
  4. Step 4: Simplify right side
    2,945.09x = 6,862,928.47
  5. Step 5: Solve for x
    x = 6,862,928.47/2,945.09
  6. Step 6: Final answer
    x = 2,330.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.