Home / 4,215.61-5,816.37-2,621.85

Finding the Fourth Proportional to 4,215.61, 5,816.37 and 2,621.85

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Solution

The fourth proportional to 4,215.61, 5,816.37 and 2,621.85 is: 3,617.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.61 : 5,816.37 = 2,621.85 : x
  2. Step 2: Convert to fraction form
    4,215.61/5,816.37 = 2,621.85/x
  3. Step 3: Cross multiply
    4,215.61x = 5,816.37 × 2,621.85
  4. Step 4: Simplify right side
    4,215.61x = 15,249,649.68
  5. Step 5: Solve for x
    x = 15,249,649.68/4,215.61
  6. Step 6: Final answer
    x = 3,617.42

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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.