Home / 2,828.34-3,901.64-1,708.65

Finding the Fourth Proportional to 2,828.34, 3,901.64 and 1,708.65

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Solution

The fourth proportional to 2,828.34, 3,901.64 and 1,708.65 is: 2,357.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.34 : 3,901.64 = 1,708.65 : x
  2. Step 2: Convert to fraction form
    2,828.34/3,901.64 = 1,708.65/x
  3. Step 3: Cross multiply
    2,828.34x = 3,901.64 × 1,708.65
  4. Step 4: Simplify right side
    2,828.34x = 6,666,528.64
  5. Step 5: Solve for x
    x = 6,666,528.64/2,828.34
  6. Step 6: Final answer
    x = 2,357.05

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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.