Home / 2,876.48-3,969.49-1,697.12

Finding the Fourth Proportional to 2,876.48, 3,969.49 and 1,697.12

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Solution

The fourth proportional to 2,876.48, 3,969.49 and 1,697.12 is: 2,341.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876.48 : 3,969.49 = 1,697.12 : x
  2. Step 2: Convert to fraction form
    2,876.48/3,969.49 = 1,697.12/x
  3. Step 3: Cross multiply
    2,876.48x = 3,969.49 × 1,697.12
  4. Step 4: Simplify right side
    2,876.48x = 6,736,700.87
  5. Step 5: Solve for x
    x = 6,736,700.87/2,876.48
  6. Step 6: Final answer
    x = 2,341.99

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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.