Home / 2,391.90-3,586.05-1,725.12

Finding the Fourth Proportional to 2,391.90, 3,586.05 and 1,725.12

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Solution

The fourth proportional to 2,391.90, 3,586.05 and 1,725.12 is: 2,586.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.90 : 3,586.05 = 1,725.12 : x
  2. Step 2: Convert to fraction form
    2,391.90/3,586.05 = 1,725.12/x
  3. Step 3: Cross multiply
    2,391.90x = 3,586.05 × 1,725.12
  4. Step 4: Simplify right side
    2,391.90x = 6,186,366.58
  5. Step 5: Solve for x
    x = 6,186,366.58/2,391.90
  6. Step 6: Final answer
    x = 2,586.38

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1.5x scale

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.