Home / 2,416.36-3,334.50-1,421.80

Finding the Fourth Proportional to 2,416.36, 3,334.50 and 1,421.80

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Solution

The fourth proportional to 2,416.36, 3,334.50 and 1,421.80 is: 1,962.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,416.36 : 3,334.50 = 1,421.80 : x
  2. Step 2: Convert to fraction form
    2,416.36/3,334.50 = 1,421.80/x
  3. Step 3: Cross multiply
    2,416.36x = 3,334.50 × 1,421.80
  4. Step 4: Simplify right side
    2,416.36x = 4,740,992.10
  5. Step 5: Solve for x
    x = 4,740,992.10/2,416.36
  6. Step 6: Final answer
    x = 1,962.04

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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.