Home / 1,130.20-1,695.79-437.36

Finding the Fourth Proportional to 1,130.20, 1,695.79 and 437.36

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Solution

The fourth proportional to 1,130.20, 1,695.79 and 437.36 is: 656.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130.20 : 1,695.79 = 437.36 : x
  2. Step 2: Convert to fraction form
    1,130.20/1,695.79 = 437.36/x
  3. Step 3: Cross multiply
    1,130.20x = 1,695.79 × 437.36
  4. Step 4: Simplify right side
    1,130.20x = 741,662.78
  5. Step 5: Solve for x
    x = 741,662.78/1,130.20
  6. Step 6: Final answer
    x = 656.22

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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.