Home / 1,586.85-2,188.20-1,363.60

Finding the Fourth Proportional to 1,586.85, 2,188.20 and 1,363.60

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Solution

The fourth proportional to 1,586.85, 2,188.20 and 1,363.60 is: 1,880.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586.85 : 2,188.20 = 1,363.60 : x
  2. Step 2: Convert to fraction form
    1,586.85/2,188.20 = 1,363.60/x
  3. Step 3: Cross multiply
    1,586.85x = 2,188.20 × 1,363.60
  4. Step 4: Simplify right side
    1,586.85x = 2,983,811.76
  5. Step 5: Solve for x
    x = 2,983,811.76/1,586.85
  6. Step 6: Final answer
    x = 1,880.34

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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.