Home / 3,873.04-5,340.86-3,315.35

Finding the Fourth Proportional to 3,873.04, 5,340.86 and 3,315.35

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Solution

The fourth proportional to 3,873.04, 5,340.86 and 3,315.35 is: 4,571.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,873.04 : 5,340.86 = 3,315.35 : x
  2. Step 2: Convert to fraction form
    3,873.04/5,340.86 = 3,315.35/x
  3. Step 3: Cross multiply
    3,873.04x = 5,340.86 × 3,315.35
  4. Step 4: Simplify right side
    3,873.04x = 17,706,803.62
  5. Step 5: Solve for x
    x = 17,706,803.62/3,873.04
  6. Step 6: Final answer
    x = 4,571.82

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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.