Home / 5,405.16-8,108.58-1,706.70

Finding the Fourth Proportional to 5,405.16, 8,108.58 and 1,706.70

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Solution

The fourth proportional to 5,405.16, 8,108.58 and 1,706.70 is: 2,560.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.16 : 8,108.58 = 1,706.70 : x
  2. Step 2: Convert to fraction form
    5,405.16/8,108.58 = 1,706.70/x
  3. Step 3: Cross multiply
    5,405.16x = 8,108.58 × 1,706.70
  4. Step 4: Simplify right side
    5,405.16x = 13,838,913.49
  5. Step 5: Solve for x
    x = 13,838,913.49/5,405.16
  6. Step 6: Final answer
    x = 2,560.32

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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.