Home / 5,405.13-8,108.71-1,708.29

Finding the Fourth Proportional to 5,405.13, 8,108.71 and 1,708.29

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Solution

The fourth proportional to 5,405.13, 8,108.71 and 1,708.29 is: 2,562.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.13 : 8,108.71 = 1,708.29 : x
  2. Step 2: Convert to fraction form
    5,405.13/8,108.71 = 1,708.29/x
  3. Step 3: Cross multiply
    5,405.13x = 8,108.71 × 1,708.29
  4. Step 4: Simplify right side
    5,405.13x = 13,852,023.94
  5. Step 5: Solve for x
    x = 13,852,023.94/5,405.13
  6. Step 6: Final answer
    x = 2,562.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.