Home / 1,651.90-2,477.94-1,188.40

Finding the Fourth Proportional to 1,651.90, 2,477.94 and 1,188.40

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Solution

The fourth proportional to 1,651.90, 2,477.94 and 1,188.40 is: 1,782.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,651.90 : 2,477.94 = 1,188.40 : x
  2. Step 2: Convert to fraction form
    1,651.90/2,477.94 = 1,188.40/x
  3. Step 3: Cross multiply
    1,651.90x = 2,477.94 × 1,188.40
  4. Step 4: Simplify right side
    1,651.90x = 2,944,783.90
  5. Step 5: Solve for x
    x = 2,944,783.90/1,651.90
  6. Step 6: Final answer
    x = 1,782.66

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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.