Home / 4,718.49-6,519.72-3,878.55

Finding the Fourth Proportional to 4,718.49, 6,519.72 and 3,878.55

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Solution

The fourth proportional to 4,718.49, 6,519.72 and 3,878.55 is: 5,359.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,718.49 : 6,519.72 = 3,878.55 : x
  2. Step 2: Convert to fraction form
    4,718.49/6,519.72 = 3,878.55/x
  3. Step 3: Cross multiply
    4,718.49x = 6,519.72 × 3,878.55
  4. Step 4: Simplify right side
    4,718.49x = 25,287,060.01
  5. Step 5: Solve for x
    x = 25,287,060.01/4,718.49
  6. Step 6: Final answer
    x = 5,359.14

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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.