Home / 7,920.41-10,929.21-4,564.32

Finding the Fourth Proportional to 7,920.41, 10,929.21 and 4,564.32

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Solution

The fourth proportional to 7,920.41, 10,929.21 and 4,564.32 is: 6,298.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920.41 : 10,929.21 = 4,564.32 : x
  2. Step 2: Convert to fraction form
    7,920.41/10,929.21 = 4,564.32/x
  3. Step 3: Cross multiply
    7,920.41x = 10,929.21 × 4,564.32
  4. Step 4: Simplify right side
    7,920.41x = 49,884,388.97
  5. Step 5: Solve for x
    x = 49,884,388.97/7,920.41
  6. Step 6: Final answer
    x = 6,298.21

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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.