Home / 4,788.10-7,181.70-1,325.26

Finding the Fourth Proportional to 4,788.10, 7,181.70 and 1,325.26

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Solution

The fourth proportional to 4,788.10, 7,181.70 and 1,325.26 is: 1,987.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,788.10 : 7,181.70 = 1,325.26 : x
  2. Step 2: Convert to fraction form
    4,788.10/7,181.70 = 1,325.26/x
  3. Step 3: Cross multiply
    4,788.10x = 7,181.70 × 1,325.26
  4. Step 4: Simplify right side
    4,788.10x = 9,517,619.74
  5. Step 5: Solve for x
    x = 9,517,619.74/4,788.10
  6. Step 6: Final answer
    x = 1,987.77

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1.5x scale

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.