Home / 5,718.32-7,891.59-3,479.84

Finding the Fourth Proportional to 5,718.32, 7,891.59 and 3,479.84

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Solution

The fourth proportional to 5,718.32, 7,891.59 and 3,479.84 is: 4,802.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,718.32 : 7,891.59 = 3,479.84 : x
  2. Step 2: Convert to fraction form
    5,718.32/7,891.59 = 3,479.84/x
  3. Step 3: Cross multiply
    5,718.32x = 7,891.59 × 3,479.84
  4. Step 4: Simplify right side
    5,718.32x = 27,461,470.55
  5. Step 5: Solve for x
    x = 27,461,470.55/5,718.32
  6. Step 6: Final answer
    x = 4,802.37

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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.