Home / 1,589.52-2,192.29-1,215.57

Finding the Fourth Proportional to 1,589.52, 2,192.29 and 1,215.57

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Solution

The fourth proportional to 1,589.52, 2,192.29 and 1,215.57 is: 1,676.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.52 : 2,192.29 = 1,215.57 : x
  2. Step 2: Convert to fraction form
    1,589.52/2,192.29 = 1,215.57/x
  3. Step 3: Cross multiply
    1,589.52x = 2,192.29 × 1,215.57
  4. Step 4: Simplify right side
    1,589.52x = 2,664,881.96
  5. Step 5: Solve for x
    x = 2,664,881.96/1,589.52
  6. Step 6: Final answer
    x = 1,676.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.