Home / 1,628.75-2,248.49-1,531.55

Finding the Fourth Proportional to 1,628.75, 2,248.49 and 1,531.55

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Solution

The fourth proportional to 1,628.75, 2,248.49 and 1,531.55 is: 2,114.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.75 : 2,248.49 = 1,531.55 : x
  2. Step 2: Convert to fraction form
    1,628.75/2,248.49 = 1,531.55/x
  3. Step 3: Cross multiply
    1,628.75x = 2,248.49 × 1,531.55
  4. Step 4: Simplify right side
    1,628.75x = 3,443,674.86
  5. Step 5: Solve for x
    x = 3,443,674.86/1,628.75
  6. Step 6: Final answer
    x = 2,114.31

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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.