Home / 2,818.08-4,208.40-2,787.57

Finding the Fourth Proportional to 2,818.08, 4,208.40 and 2,787.57

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Solution

The fourth proportional to 2,818.08, 4,208.40 and 2,787.57 is: 4,162.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.08 : 4,208.40 = 2,787.57 : x
  2. Step 2: Convert to fraction form
    2,818.08/4,208.40 = 2,787.57/x
  3. Step 3: Cross multiply
    2,818.08x = 4,208.40 × 2,787.57
  4. Step 4: Simplify right side
    2,818.08x = 11,731,209.59
  5. Step 5: Solve for x
    x = 11,731,209.59/2,818.08
  6. Step 6: Final answer
    x = 4,162.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.