Home / 1,588.76-2,191.05-1,028.64

Finding the Fourth Proportional to 1,588.76, 2,191.05 and 1,028.64

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Solution

The fourth proportional to 1,588.76, 2,191.05 and 1,028.64 is: 1,418.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.76 : 2,191.05 = 1,028.64 : x
  2. Step 2: Convert to fraction form
    1,588.76/2,191.05 = 1,028.64/x
  3. Step 3: Cross multiply
    1,588.76x = 2,191.05 × 1,028.64
  4. Step 4: Simplify right side
    1,588.76x = 2,253,801.67
  5. Step 5: Solve for x
    x = 2,253,801.67/1,588.76
  6. Step 6: Final answer
    x = 1,418.60

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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.