Home / 2,020-2,788.10-1,234.71

Finding the Fourth Proportional to 2,020, 2,788.10 and 1,234.71

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Solution

The fourth proportional to 2,020, 2,788.10 and 1,234.71 is: 1,704.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020 : 2,788.10 = 1,234.71 : x
  2. Step 2: Convert to fraction form
    2,020/2,788.10 = 1,234.71/x
  3. Step 3: Cross multiply
    2,020x = 2,788.10 × 1,234.71
  4. Step 4: Simplify right side
    2,020x = 3,442,494.95
  5. Step 5: Solve for x
    x = 3,442,494.95/2,020
  6. Step 6: Final answer
    x = 1,704.21

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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.