Home / 4,916.20-6,784.47-2,678.20

Finding the Fourth Proportional to 4,916.20, 6,784.47 and 2,678.20

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Solution

The fourth proportional to 4,916.20, 6,784.47 and 2,678.20 is: 3,695.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,916.20 : 6,784.47 = 2,678.20 : x
  2. Step 2: Convert to fraction form
    4,916.20/6,784.47 = 2,678.20/x
  3. Step 3: Cross multiply
    4,916.20x = 6,784.47 × 2,678.20
  4. Step 4: Simplify right side
    4,916.20x = 18,170,167.55
  5. Step 5: Solve for x
    x = 18,170,167.55/4,916.20
  6. Step 6: Final answer
    x = 3,695.98

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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.