Home / 4,870.20-7,316.10-4,740.60

Finding the Fourth Proportional to 4,870.20, 7,316.10 and 4,740.60

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Solution

The fourth proportional to 4,870.20, 7,316.10 and 4,740.60 is: 7,121.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,870.20 : 7,316.10 = 4,740.60 : x
  2. Step 2: Convert to fraction form
    4,870.20/7,316.10 = 4,740.60/x
  3. Step 3: Cross multiply
    4,870.20x = 7,316.10 × 4,740.60
  4. Step 4: Simplify right side
    4,870.20x = 34,682,703.66
  5. Step 5: Solve for x
    x = 34,682,703.66/4,870.20
  6. Step 6: Final answer
    x = 7,121.41

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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.