Home / 3,012.90-4,159.31-1,894.45

Finding the Fourth Proportional to 3,012.90, 4,159.31 and 1,894.45

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Solution

The fourth proportional to 3,012.90, 4,159.31 and 1,894.45 is: 2,615.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012.90 : 4,159.31 = 1,894.45 : x
  2. Step 2: Convert to fraction form
    3,012.90/4,159.31 = 1,894.45/x
  3. Step 3: Cross multiply
    3,012.90x = 4,159.31 × 1,894.45
  4. Step 4: Simplify right side
    3,012.90x = 7,879,595.36
  5. Step 5: Solve for x
    x = 7,879,595.36/3,012.90
  6. Step 6: Final answer
    x = 2,615.29

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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.