Home / 7,788.16-10,745.08-4,430.64

Finding the Fourth Proportional to 7,788.16, 10,745.08 and 4,430.64

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Solution

The fourth proportional to 7,788.16, 10,745.08 and 4,430.64 is: 6,112.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.16 : 10,745.08 = 4,430.64 : x
  2. Step 2: Convert to fraction form
    7,788.16/10,745.08 = 4,430.64/x
  3. Step 3: Cross multiply
    7,788.16x = 10,745.08 × 4,430.64
  4. Step 4: Simplify right side
    7,788.16x = 47,607,581.25
  5. Step 5: Solve for x
    x = 47,607,581.25/7,788.16
  6. Step 6: Final answer
    x = 6,112.81

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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.