Home / 4,870.20-7,310.70-2,677.80

Finding the Fourth Proportional to 4,870.20, 7,310.70 and 2,677.80

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Solution

The fourth proportional to 4,870.20, 7,310.70 and 2,677.80 is: 4,019.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,870.20 : 7,310.70 = 2,677.80 : x
  2. Step 2: Convert to fraction form
    4,870.20/7,310.70 = 2,677.80/x
  3. Step 3: Cross multiply
    4,870.20x = 7,310.70 × 2,677.80
  4. Step 4: Simplify right side
    4,870.20x = 19,576,592.46
  5. Step 5: Solve for x
    x = 19,576,592.46/4,870.20
  6. Step 6: Final answer
    x = 4,019.67

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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.