Home / 4,911.71-7,367.56-1,990.04

Finding the Fourth Proportional to 4,911.71, 7,367.56 and 1,990.04

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Solution

The fourth proportional to 4,911.71, 7,367.56 and 1,990.04 is: 2,985.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.71 : 7,367.56 = 1,990.04 : x
  2. Step 2: Convert to fraction form
    4,911.71/7,367.56 = 1,990.04/x
  3. Step 3: Cross multiply
    4,911.71x = 7,367.56 × 1,990.04
  4. Step 4: Simplify right side
    4,911.71x = 14,661,697.29
  5. Step 5: Solve for x
    x = 14,661,697.29/4,911.71
  6. Step 6: Final answer
    x = 2,985.05

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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.