Home / 3,563.80-5,347.21-1,918.43

Finding the Fourth Proportional to 3,563.80, 5,347.21 and 1,918.43

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Solution

The fourth proportional to 3,563.80, 5,347.21 and 1,918.43 is: 2,878.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,563.80 : 5,347.21 = 1,918.43 : x
  2. Step 2: Convert to fraction form
    3,563.80/5,347.21 = 1,918.43/x
  3. Step 3: Cross multiply
    3,563.80x = 5,347.21 × 1,918.43
  4. Step 4: Simplify right side
    3,563.80x = 10,258,223.74
  5. Step 5: Solve for x
    x = 10,258,223.74/3,563.80
  6. Step 6: Final answer
    x = 2,878.45

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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.