Home / 2,511.40-3,465.56-1,392.26

Finding the Fourth Proportional to 2,511.40, 3,465.56 and 1,392.26

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Solution

The fourth proportional to 2,511.40, 3,465.56 and 1,392.26 is: 1,921.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.40 : 3,465.56 = 1,392.26 : x
  2. Step 2: Convert to fraction form
    2,511.40/3,465.56 = 1,392.26/x
  3. Step 3: Cross multiply
    2,511.40x = 3,465.56 × 1,392.26
  4. Step 4: Simplify right side
    2,511.40x = 4,824,960.57
  5. Step 5: Solve for x
    x = 4,824,960.57/2,511.40
  6. Step 6: Final answer
    x = 1,921.22

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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.