Home / 2,511.48-3,465.83-1,392.58

Finding the Fourth Proportional to 2,511.48, 3,465.83 and 1,392.58

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Solution

The fourth proportional to 2,511.48, 3,465.83 and 1,392.58 is: 1,921.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.48 : 3,465.83 = 1,392.58 : x
  2. Step 2: Convert to fraction form
    2,511.48/3,465.83 = 1,392.58/x
  3. Step 3: Cross multiply
    2,511.48x = 3,465.83 × 1,392.58
  4. Step 4: Simplify right side
    2,511.48x = 4,826,459.19
  5. Step 5: Solve for x
    x = 4,826,459.19/2,511.48
  6. Step 6: Final answer
    x = 1,921.76

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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.