Home / 7,427.85-11,140.57-2,750.08

Finding the Fourth Proportional to 7,427.85, 11,140.57 and 2,750.08

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Solution

The fourth proportional to 7,427.85, 11,140.57 and 2,750.08 is: 4,124.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.85 : 11,140.57 = 2,750.08 : x
  2. Step 2: Convert to fraction form
    7,427.85/11,140.57 = 2,750.08/x
  3. Step 3: Cross multiply
    7,427.85x = 11,140.57 × 2,750.08
  4. Step 4: Simplify right side
    7,427.85x = 30,637,458.75
  5. Step 5: Solve for x
    x = 30,637,458.75/7,427.85
  6. Step 6: Final answer
    x = 4,124.67

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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.