Home / 5,720.38-8,580.61-1,771.63

Finding the Fourth Proportional to 5,720.38, 8,580.61 and 1,771.63

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Solution

The fourth proportional to 5,720.38, 8,580.61 and 1,771.63 is: 2,657.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.38 : 8,580.61 = 1,771.63 : x
  2. Step 2: Convert to fraction form
    5,720.38/8,580.61 = 1,771.63/x
  3. Step 3: Cross multiply
    5,720.38x = 8,580.61 × 1,771.63
  4. Step 4: Simplify right side
    5,720.38x = 15,201,666.09
  5. Step 5: Solve for x
    x = 15,201,666.09/5,720.38
  6. Step 6: Final answer
    x = 2,657.46

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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.