Home / 2,420.61-3,629.55-2,214.21

Finding the Fourth Proportional to 2,420.61, 3,629.55 and 2,214.21

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Solution

The fourth proportional to 2,420.61, 3,629.55 and 2,214.21 is: 3,320.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.61 : 3,629.55 = 2,214.21 : x
  2. Step 2: Convert to fraction form
    2,420.61/3,629.55 = 2,214.21/x
  3. Step 3: Cross multiply
    2,420.61x = 3,629.55 × 2,214.21
  4. Step 4: Simplify right side
    2,420.61x = 8,036,585.91
  5. Step 5: Solve for x
    x = 8,036,585.91/2,420.61
  6. Step 6: Final answer
    x = 3,320.07

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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.