Home / 1,530.30-2,295.20-434.42

Finding the Fourth Proportional to 1,530.30, 2,295.20 and 434.42

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Solution

The fourth proportional to 1,530.30, 2,295.20 and 434.42 is: 651.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530.30 : 2,295.20 = 434.42 : x
  2. Step 2: Convert to fraction form
    1,530.30/2,295.20 = 434.42/x
  3. Step 3: Cross multiply
    1,530.30x = 2,295.20 × 434.42
  4. Step 4: Simplify right side
    1,530.30x = 997,067.14
  5. Step 5: Solve for x
    x = 997,067.14/1,530.30
  6. Step 6: Final answer
    x = 651.55

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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.