Home / 2,279.16-3,416.43-1,047.45

Finding the Fourth Proportional to 2,279.16, 3,416.43 and 1,047.45

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Solution

The fourth proportional to 2,279.16, 3,416.43 and 1,047.45 is: 1,570.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.16 : 3,416.43 = 1,047.45 : x
  2. Step 2: Convert to fraction form
    2,279.16/3,416.43 = 1,047.45/x
  3. Step 3: Cross multiply
    2,279.16x = 3,416.43 × 1,047.45
  4. Step 4: Simplify right side
    2,279.16x = 3,578,539.60
  5. Step 5: Solve for x
    x = 3,578,539.60/2,279.16
  6. Step 6: Final answer
    x = 1,570.11

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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.