Home / 1,470.23-2,028.77-880.75

Finding the Fourth Proportional to 1,470.23, 2,028.77 and 880.75

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Solution

The fourth proportional to 1,470.23, 2,028.77 and 880.75 is: 1,215.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,470.23 : 2,028.77 = 880.75 : x
  2. Step 2: Convert to fraction form
    1,470.23/2,028.77 = 880.75/x
  3. Step 3: Cross multiply
    1,470.23x = 2,028.77 × 880.75
  4. Step 4: Simplify right side
    1,470.23x = 1,786,829.70
  5. Step 5: Solve for x
    x = 1,786,829.70/1,470.23
  6. Step 6: Final answer
    x = 1,215.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.