Home / 2,653.35-3,981.99-1,013.10

Finding the Fourth Proportional to 2,653.35, 3,981.99 and 1,013.10

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Solution

The fourth proportional to 2,653.35, 3,981.99 and 1,013.10 is: 1,520.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,653.35 : 3,981.99 = 1,013.10 : x
  2. Step 2: Convert to fraction form
    2,653.35/3,981.99 = 1,013.10/x
  3. Step 3: Cross multiply
    2,653.35x = 3,981.99 × 1,013.10
  4. Step 4: Simplify right side
    2,653.35x = 4,034,154.07
  5. Step 5: Solve for x
    x = 4,034,154.07/2,653.35
  6. Step 6: Final answer
    x = 1,520.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.