Home / 1,586.97-2,191.58-1,308.13

Finding the Fourth Proportional to 1,586.97, 2,191.58 and 1,308.13

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Solution

The fourth proportional to 1,586.97, 2,191.58 and 1,308.13 is: 1,806.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586.97 : 2,191.58 = 1,308.13 : x
  2. Step 2: Convert to fraction form
    1,586.97/2,191.58 = 1,308.13/x
  3. Step 3: Cross multiply
    1,586.97x = 2,191.58 × 1,308.13
  4. Step 4: Simplify right side
    1,586.97x = 2,866,871.55
  5. Step 5: Solve for x
    x = 2,866,871.55/1,586.97
  6. Step 6: Final answer
    x = 1,806.51

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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.