Home / 5,189.47-7,784.64-2,070.23

Finding the Fourth Proportional to 5,189.47, 7,784.64 and 2,070.23

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Solution

The fourth proportional to 5,189.47, 7,784.64 and 2,070.23 is: 3,105.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.47 : 7,784.64 = 2,070.23 : x
  2. Step 2: Convert to fraction form
    5,189.47/7,784.64 = 2,070.23/x
  3. Step 3: Cross multiply
    5,189.47x = 7,784.64 × 2,070.23
  4. Step 4: Simplify right side
    5,189.47x = 16,115,956.34
  5. Step 5: Solve for x
    x = 16,115,956.34/5,189.47
  6. Step 6: Final answer
    x = 3,105.51

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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.