Home / 6,630.40-9,153.48-4,111.30

Finding the Fourth Proportional to 6,630.40, 9,153.48 and 4,111.30

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Solution

The fourth proportional to 6,630.40, 9,153.48 and 4,111.30 is: 5,675.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,630.40 : 9,153.48 = 4,111.30 : x
  2. Step 2: Convert to fraction form
    6,630.40/9,153.48 = 4,111.30/x
  3. Step 3: Cross multiply
    6,630.40x = 9,153.48 × 4,111.30
  4. Step 4: Simplify right side
    6,630.40x = 37,632,702.32
  5. Step 5: Solve for x
    x = 37,632,702.32/6,630.40
  6. Step 6: Final answer
    x = 5,675.78

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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.