Home / 7,721.08-10,649.67-4,738.36

Finding the Fourth Proportional to 7,721.08, 10,649.67 and 4,738.36

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Solution

The fourth proportional to 7,721.08, 10,649.67 and 4,738.36 is: 6,535.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.08 : 10,649.67 = 4,738.36 : x
  2. Step 2: Convert to fraction form
    7,721.08/10,649.67 = 4,738.36/x
  3. Step 3: Cross multiply
    7,721.08x = 10,649.67 × 4,738.36
  4. Step 4: Simplify right side
    7,721.08x = 50,461,970.34
  5. Step 5: Solve for x
    x = 50,461,970.34/7,721.08
  6. Step 6: Final answer
    x = 6,535.61

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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.