Home / 1,477.50-2,216.25-611.84

Finding the Fourth Proportional to 1,477.50, 2,216.25 and 611.84

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Solution

The fourth proportional to 1,477.50, 2,216.25 and 611.84 is: 917.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,477.50 : 2,216.25 = 611.84 : x
  2. Step 2: Convert to fraction form
    1,477.50/2,216.25 = 611.84/x
  3. Step 3: Cross multiply
    1,477.50x = 2,216.25 × 611.84
  4. Step 4: Simplify right side
    1,477.50x = 1,355,990.40
  5. Step 5: Solve for x
    x = 1,355,990.40/1,477.50
  6. Step 6: Final answer
    x = 917.76

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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.