Home / 4,989.23-7,483.80-1,911.23

Finding the Fourth Proportional to 4,989.23, 7,483.80 and 1,911.23

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Solution

The fourth proportional to 4,989.23, 7,483.80 and 1,911.23 is: 2,866.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.23 : 7,483.80 = 1,911.23 : x
  2. Step 2: Convert to fraction form
    4,989.23/7,483.80 = 1,911.23/x
  3. Step 3: Cross multiply
    4,989.23x = 7,483.80 × 1,911.23
  4. Step 4: Simplify right side
    4,989.23x = 14,303,281.78
  5. Step 5: Solve for x
    x = 14,303,281.78/4,989.23
  6. Step 6: Final answer
    x = 2,866.83

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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.