Home / 3,420.09-4,718.75-2,056.99

Finding the Fourth Proportional to 3,420.09, 4,718.75 and 2,056.99

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Solution

The fourth proportional to 3,420.09, 4,718.75 and 2,056.99 is: 2,838.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.09 : 4,718.75 = 2,056.99 : x
  2. Step 2: Convert to fraction form
    3,420.09/4,718.75 = 2,056.99/x
  3. Step 3: Cross multiply
    3,420.09x = 4,718.75 × 2,056.99
  4. Step 4: Simplify right side
    3,420.09x = 9,706,425.85
  5. Step 5: Solve for x
    x = 9,706,425.85/3,420.09
  6. Step 6: Final answer
    x = 2,838.06

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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.