Home / 7,455.12-11,182.66-1,908.46

Finding the Fourth Proportional to 7,455.12, 11,182.66 and 1,908.46

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Solution

The fourth proportional to 7,455.12, 11,182.66 and 1,908.46 is: 2,862.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,455.12 : 11,182.66 = 1,908.46 : x
  2. Step 2: Convert to fraction form
    7,455.12/11,182.66 = 1,908.46/x
  3. Step 3: Cross multiply
    7,455.12x = 11,182.66 × 1,908.46
  4. Step 4: Simplify right side
    7,455.12x = 21,341,668.51
  5. Step 5: Solve for x
    x = 21,341,668.51/7,455.12
  6. Step 6: Final answer
    x = 2,862.69

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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.