Home / 5,015.18-6,921.05-3,000.67

Finding the Fourth Proportional to 5,015.18, 6,921.05 and 3,000.67

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Solution

The fourth proportional to 5,015.18, 6,921.05 and 3,000.67 is: 4,140.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.18 : 6,921.05 = 3,000.67 : x
  2. Step 2: Convert to fraction form
    5,015.18/6,921.05 = 3,000.67/x
  3. Step 3: Cross multiply
    5,015.18x = 6,921.05 × 3,000.67
  4. Step 4: Simplify right side
    5,015.18x = 20,767,772.10
  5. Step 5: Solve for x
    x = 20,767,772.10/5,015.18
  6. Step 6: Final answer
    x = 4,140.98

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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.