Home / 1,595.13-2,391.30-620.55

Finding the Fourth Proportional to 1,595.13, 2,391.30 and 620.55

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Solution

The fourth proportional to 1,595.13, 2,391.30 and 620.55 is: 930.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,595.13 : 2,391.30 = 620.55 : x
  2. Step 2: Convert to fraction form
    1,595.13/2,391.30 = 620.55/x
  3. Step 3: Cross multiply
    1,595.13x = 2,391.30 × 620.55
  4. Step 4: Simplify right side
    1,595.13x = 1,483,921.22
  5. Step 5: Solve for x
    x = 1,483,921.22/1,595.13
  6. Step 6: Final answer
    x = 930.28

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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.