Home / 2,416.84-3,334.16-1,421.65

Finding the Fourth Proportional to 2,416.84, 3,334.16 and 1,421.65

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Solution

The fourth proportional to 2,416.84, 3,334.16 and 1,421.65 is: 1,961.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,416.84 : 3,334.16 = 1,421.65 : x
  2. Step 2: Convert to fraction form
    2,416.84/3,334.16 = 1,421.65/x
  3. Step 3: Cross multiply
    2,416.84x = 3,334.16 × 1,421.65
  4. Step 4: Simplify right side
    2,416.84x = 4,740,016.29
  5. Step 5: Solve for x
    x = 4,740,016.29/2,416.84
  6. Step 6: Final answer
    x = 1,961.25

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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.