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Finding the Fourth Proportional to 6,754.40, 10,111.80 and 4,810.40

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Solution

The fourth proportional to 6,754.40, 10,111.80 and 4,810.40 is: 7,201.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,754.40 : 10,111.80 = 4,810.40 : x
  2. Step 2: Convert to fraction form
    6,754.40/10,111.80 = 4,810.40/x
  3. Step 3: Cross multiply
    6,754.40x = 10,111.80 × 4,810.40
  4. Step 4: Simplify right side
    6,754.40x = 48,641,802.72
  5. Step 5: Solve for x
    x = 48,641,802.72/6,754.40
  6. Step 6: Final answer
    x = 7,201.50

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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.