Home / 1,911.96-2,868.12-924.48

Finding the Fourth Proportional to 1,911.96, 2,868.12 and 924.48

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Solution

The fourth proportional to 1,911.96, 2,868.12 and 924.48 is: 1,386.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911.96 : 2,868.12 = 924.48 : x
  2. Step 2: Convert to fraction form
    1,911.96/2,868.12 = 924.48/x
  3. Step 3: Cross multiply
    1,911.96x = 2,868.12 × 924.48
  4. Step 4: Simplify right side
    1,911.96x = 2,651,519.58
  5. Step 5: Solve for x
    x = 2,651,519.58/1,911.96
  6. Step 6: Final answer
    x = 1,386.81

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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.