Home / 7,127.28-10,679.98-4,349.79

Finding the Fourth Proportional to 7,127.28, 10,679.98 and 4,349.79

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Solution

The fourth proportional to 7,127.28, 10,679.98 and 4,349.79 is: 6,518.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.28 : 10,679.98 = 4,349.79 : x
  2. Step 2: Convert to fraction form
    7,127.28/10,679.98 = 4,349.79/x
  3. Step 3: Cross multiply
    7,127.28x = 10,679.98 × 4,349.79
  4. Step 4: Simplify right side
    7,127.28x = 46,455,670.20
  5. Step 5: Solve for x
    x = 46,455,670.20/7,127.28
  6. Step 6: Final answer
    x = 6,518.01

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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.