Home / 4,916.66-6,785.90-2,820.79

Finding the Fourth Proportional to 4,916.66, 6,785.90 and 2,820.79

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Solution

The fourth proportional to 4,916.66, 6,785.90 and 2,820.79 is: 3,893.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,916.66 : 6,785.90 = 2,820.79 : x
  2. Step 2: Convert to fraction form
    4,916.66/6,785.90 = 2,820.79/x
  3. Step 3: Cross multiply
    4,916.66x = 6,785.90 × 2,820.79
  4. Step 4: Simplify right side
    4,916.66x = 19,141,598.86
  5. Step 5: Solve for x
    x = 19,141,598.86/4,916.66
  6. Step 6: Final answer
    x = 3,893.21

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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.