Home / 4,986.52-6,880.64-2,890.24

Finding the Fourth Proportional to 4,986.52, 6,880.64 and 2,890.24

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Solution

The fourth proportional to 4,986.52, 6,880.64 and 2,890.24 is: 3,988.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.52 : 6,880.64 = 2,890.24 : x
  2. Step 2: Convert to fraction form
    4,986.52/6,880.64 = 2,890.24/x
  3. Step 3: Cross multiply
    4,986.52x = 6,880.64 × 2,890.24
  4. Step 4: Simplify right side
    4,986.52x = 19,886,700.95
  5. Step 5: Solve for x
    x = 19,886,700.95/4,986.52
  6. Step 6: Final answer
    x = 3,988.09

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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.