Home / 2,455.12-3,389.76-1,707.76

Finding the Fourth Proportional to 2,455.12, 3,389.76 and 1,707.76

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Solution

The fourth proportional to 2,455.12, 3,389.76 and 1,707.76 is: 2,357.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.12 : 3,389.76 = 1,707.76 : x
  2. Step 2: Convert to fraction form
    2,455.12/3,389.76 = 1,707.76/x
  3. Step 3: Cross multiply
    2,455.12x = 3,389.76 × 1,707.76
  4. Step 4: Simplify right side
    2,455.12x = 5,788,896.54
  5. Step 5: Solve for x
    x = 5,788,896.54/2,455.12
  6. Step 6: Final answer
    x = 2,357.89

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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.