Home / 4,916.71-6,784.79-2,820.84

Finding the Fourth Proportional to 4,916.71, 6,784.79 and 2,820.84

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Solution

The fourth proportional to 4,916.71, 6,784.79 and 2,820.84 is: 3,892.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,916.71 : 6,784.79 = 2,820.84 : x
  2. Step 2: Convert to fraction form
    4,916.71/6,784.79 = 2,820.84/x
  3. Step 3: Cross multiply
    4,916.71x = 6,784.79 × 2,820.84
  4. Step 4: Simplify right side
    4,916.71x = 19,138,807.02
  5. Step 5: Solve for x
    x = 19,138,807.02/4,916.71
  6. Step 6: Final answer
    x = 3,892.60

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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.