Home / 5,670-7,824.60-3,314.12

Finding the Fourth Proportional to 5,670, 7,824.60 and 3,314.12

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Solution

The fourth proportional to 5,670, 7,824.60 and 3,314.12 is: 4,573.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,670 : 7,824.60 = 3,314.12 : x
  2. Step 2: Convert to fraction form
    5,670/7,824.60 = 3,314.12/x
  3. Step 3: Cross multiply
    5,670x = 7,824.60 × 3,314.12
  4. Step 4: Simplify right side
    5,670x = 25,931,624.23
  5. Step 5: Solve for x
    x = 25,931,624.23/5,670
  6. Step 6: Final answer
    x = 4,573.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.