Home / 4,680.80-7,027.32-3,130.76

Finding the Fourth Proportional to 4,680.80, 7,027.32 and 3,130.76

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Solution

The fourth proportional to 4,680.80, 7,027.32 and 3,130.76 is: 4,700.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680.80 : 7,027.32 = 3,130.76 : x
  2. Step 2: Convert to fraction form
    4,680.80/7,027.32 = 3,130.76/x
  3. Step 3: Cross multiply
    4,680.80x = 7,027.32 × 3,130.76
  4. Step 4: Simplify right side
    4,680.80x = 22,000,852.36
  5. Step 5: Solve for x
    x = 22,000,852.36/4,680.80
  6. Step 6: Final answer
    x = 4,700.23

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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.