Home / 4,810.15-6,638.57-2,820.70

Finding the Fourth Proportional to 4,810.15, 6,638.57 and 2,820.70

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Solution

The fourth proportional to 4,810.15, 6,638.57 and 2,820.70 is: 3,892.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,810.15 : 6,638.57 = 2,820.70 : x
  2. Step 2: Convert to fraction form
    4,810.15/6,638.57 = 2,820.70/x
  3. Step 3: Cross multiply
    4,810.15x = 6,638.57 × 2,820.70
  4. Step 4: Simplify right side
    4,810.15x = 18,725,414.40
  5. Step 5: Solve for x
    x = 18,725,414.40/4,810.15
  6. Step 6: Final answer
    x = 3,892.90

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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.