Home / 7,702.05-11,554.02-3,318.60

Finding the Fourth Proportional to 7,702.05, 11,554.02 and 3,318.60

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Solution

The fourth proportional to 7,702.05, 11,554.02 and 3,318.60 is: 4,978.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,702.05 : 11,554.02 = 3,318.60 : x
  2. Step 2: Convert to fraction form
    7,702.05/11,554.02 = 3,318.60/x
  3. Step 3: Cross multiply
    7,702.05x = 11,554.02 × 3,318.60
  4. Step 4: Simplify right side
    7,702.05x = 38,343,170.77
  5. Step 5: Solve for x
    x = 38,343,170.77/7,702.05
  6. Step 6: Final answer
    x = 4,978.31

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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.