Home / 7,788.36-10,748.88-4,431.99

Finding the Fourth Proportional to 7,788.36, 10,748.88 and 4,431.99

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Solution

The fourth proportional to 7,788.36, 10,748.88 and 4,431.99 is: 6,116.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.36 : 10,748.88 = 4,431.99 : x
  2. Step 2: Convert to fraction form
    7,788.36/10,748.88 = 4,431.99/x
  3. Step 3: Cross multiply
    7,788.36x = 10,748.88 × 4,431.99
  4. Step 4: Simplify right side
    7,788.36x = 47,638,928.67
  5. Step 5: Solve for x
    x = 47,638,928.67/7,788.36
  6. Step 6: Final answer
    x = 6,116.68

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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.