Home / 3,818.98-5,269.96-2,140.46

Finding the Fourth Proportional to 3,818.98, 5,269.96 and 2,140.46

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Solution

The fourth proportional to 3,818.98, 5,269.96 and 2,140.46 is: 2,953.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.98 : 5,269.96 = 2,140.46 : x
  2. Step 2: Convert to fraction form
    3,818.98/5,269.96 = 2,140.46/x
  3. Step 3: Cross multiply
    3,818.98x = 5,269.96 × 2,140.46
  4. Step 4: Simplify right side
    3,818.98x = 11,280,134.67
  5. Step 5: Solve for x
    x = 11,280,134.67/3,818.98
  6. Step 6: Final answer
    x = 2,953.70

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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.