Home / 4,788-7,182.41-1,325.25

Finding the Fourth Proportional to 4,788, 7,182.41 and 1,325.25

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Solution

The fourth proportional to 4,788, 7,182.41 and 1,325.25 is: 1,987.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,788 : 7,182.41 = 1,325.25 : x
  2. Step 2: Convert to fraction form
    4,788/7,182.41 = 1,325.25/x
  3. Step 3: Cross multiply
    4,788x = 7,182.41 × 1,325.25
  4. Step 4: Simplify right side
    4,788x = 9,518,482.23
  5. Step 5: Solve for x
    x = 9,518,482.23/4,788
  6. Step 6: Final answer
    x = 1,987.99

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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.