Home / 4,290.49-5,921.76-2,718.28

Finding the Fourth Proportional to 4,290.49, 5,921.76 and 2,718.28

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Solution

The fourth proportional to 4,290.49, 5,921.76 and 2,718.28 is: 3,751.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,290.49 : 5,921.76 = 2,718.28 : x
  2. Step 2: Convert to fraction form
    4,290.49/5,921.76 = 2,718.28/x
  3. Step 3: Cross multiply
    4,290.49x = 5,921.76 × 2,718.28
  4. Step 4: Simplify right side
    4,290.49x = 16,097,001.77
  5. Step 5: Solve for x
    x = 16,097,001.77/4,290.49
  6. Step 6: Final answer
    x = 3,751.79

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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.