Home / 7,130.45-10,695.69-3,230.30

Finding the Fourth Proportional to 7,130.45, 10,695.69 and 3,230.30

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Solution

The fourth proportional to 7,130.45, 10,695.69 and 3,230.30 is: 4,845.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.45 : 10,695.69 = 3,230.30 : x
  2. Step 2: Convert to fraction form
    7,130.45/10,695.69 = 3,230.30/x
  3. Step 3: Cross multiply
    7,130.45x = 10,695.69 × 3,230.30
  4. Step 4: Simplify right side
    7,130.45x = 34,550,233.93
  5. Step 5: Solve for x
    x = 34,550,233.93/7,130.45
  6. Step 6: Final answer
    x = 4,845.45

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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.