Home / 2,070.67-2,856.38-1,313.05

Finding the Fourth Proportional to 2,070.67, 2,856.38 and 1,313.05

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Solution

The fourth proportional to 2,070.67, 2,856.38 and 1,313.05 is: 1,811.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,070.67 : 2,856.38 = 1,313.05 : x
  2. Step 2: Convert to fraction form
    2,070.67/2,856.38 = 1,313.05/x
  3. Step 3: Cross multiply
    2,070.67x = 2,856.38 × 1,313.05
  4. Step 4: Simplify right side
    2,070.67x = 3,750,556.05
  5. Step 5: Solve for x
    x = 3,750,556.05/2,070.67
  6. Step 6: Final answer
    x = 1,811.28

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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.