Home / 3,115.03-4,671.63-1,653.40

Finding the Fourth Proportional to 3,115.03, 4,671.63 and 1,653.40

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Solution

The fourth proportional to 3,115.03, 4,671.63 and 1,653.40 is: 2,479.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.03 : 4,671.63 = 1,653.40 : x
  2. Step 2: Convert to fraction form
    3,115.03/4,671.63 = 1,653.40/x
  3. Step 3: Cross multiply
    3,115.03x = 4,671.63 × 1,653.40
  4. Step 4: Simplify right side
    3,115.03x = 7,724,073.04
  5. Step 5: Solve for x
    x = 7,724,073.04/3,115.03
  6. Step 6: Final answer
    x = 2,479.61

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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.