Home / 3,918.24-5,878.44-3,488.40

Finding the Fourth Proportional to 3,918.24, 5,878.44 and 3,488.40

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Solution

The fourth proportional to 3,918.24, 5,878.44 and 3,488.40 is: 5,233.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.24 : 5,878.44 = 3,488.40 : x
  2. Step 2: Convert to fraction form
    3,918.24/5,878.44 = 3,488.40/x
  3. Step 3: Cross multiply
    3,918.24x = 5,878.44 × 3,488.40
  4. Step 4: Simplify right side
    3,918.24x = 20,506,350.10
  5. Step 5: Solve for x
    x = 20,506,350.10/3,918.24
  6. Step 6: Final answer
    x = 5,233.56

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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.