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Finding the Fourth Proportional to 1,595.51, 2,392.31 and 620.47

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Solution

The fourth proportional to 1,595.51, 2,392.31 and 620.47 is: 930.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,595.51 : 2,392.31 = 620.47 : x
  2. Step 2: Convert to fraction form
    1,595.51/2,392.31 = 620.47/x
  3. Step 3: Cross multiply
    1,595.51x = 2,392.31 × 620.47
  4. Step 4: Simplify right side
    1,595.51x = 1,484,352.16
  5. Step 5: Solve for x
    x = 1,484,352.16/1,595.51
  6. Step 6: Final answer
    x = 930.33

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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.