Home / 2,115.62-2,918.73-1,697.05

Finding the Fourth Proportional to 2,115.62, 2,918.73 and 1,697.05

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Solution

The fourth proportional to 2,115.62, 2,918.73 and 1,697.05 is: 2,341.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115.62 : 2,918.73 = 1,697.05 : x
  2. Step 2: Convert to fraction form
    2,115.62/2,918.73 = 1,697.05/x
  3. Step 3: Cross multiply
    2,115.62x = 2,918.73 × 1,697.05
  4. Step 4: Simplify right side
    2,115.62x = 4,953,240.76
  5. Step 5: Solve for x
    x = 4,953,240.76/2,115.62
  6. Step 6: Final answer
    x = 2,341.27

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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.