Home / 2,740.17-4,110.65-890.70

Finding the Fourth Proportional to 2,740.17, 4,110.65 and 890.70

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Solution

The fourth proportional to 2,740.17, 4,110.65 and 890.70 is: 1,336.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.17 : 4,110.65 = 890.70 : x
  2. Step 2: Convert to fraction form
    2,740.17/4,110.65 = 890.70/x
  3. Step 3: Cross multiply
    2,740.17x = 4,110.65 × 890.70
  4. Step 4: Simplify right side
    2,740.17x = 3,661,355.96
  5. Step 5: Solve for x
    x = 3,661,355.96/2,740.17
  6. Step 6: Final answer
    x = 1,336.18

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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.