Home / 7,275.34-10,918.44-4,929.78

Finding the Fourth Proportional to 7,275.34, 10,918.44 and 4,929.78

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Solution

The fourth proportional to 7,275.34, 10,918.44 and 4,929.78 is: 7,398.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,275.34 : 10,918.44 = 4,929.78 : x
  2. Step 2: Convert to fraction form
    7,275.34/10,918.44 = 4,929.78/x
  3. Step 3: Cross multiply
    7,275.34x = 10,918.44 × 4,929.78
  4. Step 4: Simplify right side
    7,275.34x = 53,825,507.14
  5. Step 5: Solve for x
    x = 53,825,507.14/7,275.34
  6. Step 6: Final answer
    x = 7,398.35

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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.