Home / 7,131.72-10,697.40-1,937.58

Finding the Fourth Proportional to 7,131.72, 10,697.40 and 1,937.58

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Solution

The fourth proportional to 7,131.72, 10,697.40 and 1,937.58 is: 2,906.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.72 : 10,697.40 = 1,937.58 : x
  2. Step 2: Convert to fraction form
    7,131.72/10,697.40 = 1,937.58/x
  3. Step 3: Cross multiply
    7,131.72x = 10,697.40 × 1,937.58
  4. Step 4: Simplify right side
    7,131.72x = 20,727,068.29
  5. Step 5: Solve for x
    x = 20,727,068.29/7,131.72
  6. Step 6: Final answer
    x = 2,906.32

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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.