Home / 4,242.58-6,362.96-1,320.20

Finding the Fourth Proportional to 4,242.58, 6,362.96 and 1,320.20

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Solution

The fourth proportional to 4,242.58, 6,362.96 and 1,320.20 is: 1,980.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,242.58 : 6,362.96 = 1,320.20 : x
  2. Step 2: Convert to fraction form
    4,242.58/6,362.96 = 1,320.20/x
  3. Step 3: Cross multiply
    4,242.58x = 6,362.96 × 1,320.20
  4. Step 4: Simplify right side
    4,242.58x = 8,400,365.24
  5. Step 5: Solve for x
    x = 8,400,365.24/4,242.58
  6. Step 6: Final answer
    x = 1,980.01

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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.