Home / 5,418.63-7,458.75-4,718.79

Finding the Fourth Proportional to 5,418.63, 7,458.75 and 4,718.79

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Solution

The fourth proportional to 5,418.63, 7,458.75 and 4,718.79 is: 6,495.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.63 : 7,458.75 = 4,718.79 : x
  2. Step 2: Convert to fraction form
    5,418.63/7,458.75 = 4,718.79/x
  3. Step 3: Cross multiply
    5,418.63x = 7,458.75 × 4,718.79
  4. Step 4: Simplify right side
    5,418.63x = 35,196,274.91
  5. Step 5: Solve for x
    x = 35,196,274.91/5,418.63
  6. Step 6: Final answer
    x = 6,495.42

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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.