Home / 7,240.89-9,991.98-4,010.07

Finding the Fourth Proportional to 7,240.89, 9,991.98 and 4,010.07

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Solution

The fourth proportional to 7,240.89, 9,991.98 and 4,010.07 is: 5,533.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.89 : 9,991.98 = 4,010.07 : x
  2. Step 2: Convert to fraction form
    7,240.89/9,991.98 = 4,010.07/x
  3. Step 3: Cross multiply
    7,240.89x = 9,991.98 × 4,010.07
  4. Step 4: Simplify right side
    7,240.89x = 40,068,539.24
  5. Step 5: Solve for x
    x = 40,068,539.24/7,240.89
  6. Step 6: Final answer
    x = 5,533.65

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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.