Home / 1,586.40-2,184.75-1,236.48

Finding the Fourth Proportional to 1,586.40, 2,184.75 and 1,236.48

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Solution

The fourth proportional to 1,586.40, 2,184.75 and 1,236.48 is: 1,702.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586.40 : 2,184.75 = 1,236.48 : x
  2. Step 2: Convert to fraction form
    1,586.40/2,184.75 = 1,236.48/x
  3. Step 3: Cross multiply
    1,586.40x = 2,184.75 × 1,236.48
  4. Step 4: Simplify right side
    1,586.40x = 2,701,399.68
  5. Step 5: Solve for x
    x = 2,701,399.68/1,586.40
  6. Step 6: Final answer
    x = 1,702.85

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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.