Home / 7,320.21-10,100.19-4,335.09

Finding the Fourth Proportional to 7,320.21, 10,100.19 and 4,335.09

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Solution

The fourth proportional to 7,320.21, 10,100.19 and 4,335.09 is: 5,981.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.21 : 10,100.19 = 4,335.09 : x
  2. Step 2: Convert to fraction form
    7,320.21/10,100.19 = 4,335.09/x
  3. Step 3: Cross multiply
    7,320.21x = 10,100.19 × 4,335.09
  4. Step 4: Simplify right side
    7,320.21x = 43,785,232.67
  5. Step 5: Solve for x
    x = 43,785,232.67/7,320.21
  6. Step 6: Final answer
    x = 5,981.42

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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.