Home / 1,531.63-2,112.24-1,471.69

Finding the Fourth Proportional to 1,531.63, 2,112.24 and 1,471.69

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Solution

The fourth proportional to 1,531.63, 2,112.24 and 1,471.69 is: 2,029.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.63 : 2,112.24 = 1,471.69 : x
  2. Step 2: Convert to fraction form
    1,531.63/2,112.24 = 1,471.69/x
  3. Step 3: Cross multiply
    1,531.63x = 2,112.24 × 1,471.69
  4. Step 4: Simplify right side
    1,531.63x = 3,108,562.49
  5. Step 5: Solve for x
    x = 3,108,562.49/1,531.63
  6. Step 6: Final answer
    x = 2,029.58

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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.