Home / 1,976.08-2,961.95-1,430.65

Finding the Fourth Proportional to 1,976.08, 2,961.95 and 1,430.65

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Solution

The fourth proportional to 1,976.08, 2,961.95 and 1,430.65 is: 2,144.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.08 : 2,961.95 = 1,430.65 : x
  2. Step 2: Convert to fraction form
    1,976.08/2,961.95 = 1,430.65/x
  3. Step 3: Cross multiply
    1,976.08x = 2,961.95 × 1,430.65
  4. Step 4: Simplify right side
    1,976.08x = 4,237,513.77
  5. Step 5: Solve for x
    x = 4,237,513.77/1,976.08
  6. Step 6: Final answer
    x = 2,144.40

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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.