Home / 7,154.76-10,731.06-3,205.20

Finding the Fourth Proportional to 7,154.76, 10,731.06 and 3,205.20

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Solution

The fourth proportional to 7,154.76, 10,731.06 and 3,205.20 is: 4,807.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,154.76 : 10,731.06 = 3,205.20 : x
  2. Step 2: Convert to fraction form
    7,154.76/10,731.06 = 3,205.20/x
  3. Step 3: Cross multiply
    7,154.76x = 10,731.06 × 3,205.20
  4. Step 4: Simplify right side
    7,154.76x = 34,395,193.51
  5. Step 5: Solve for x
    x = 34,395,193.51/7,154.76
  6. Step 6: Final answer
    x = 4,807.32

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1.5x scale

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.