Home / 1,530.28-2,109.22-1,171.26

Finding the Fourth Proportional to 1,530.28, 2,109.22 and 1,171.26

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Solution

The fourth proportional to 1,530.28, 2,109.22 and 1,171.26 is: 1,614.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530.28 : 2,109.22 = 1,171.26 : x
  2. Step 2: Convert to fraction form
    1,530.28/2,109.22 = 1,171.26/x
  3. Step 3: Cross multiply
    1,530.28x = 2,109.22 × 1,171.26
  4. Step 4: Simplify right side
    1,530.28x = 2,470,445.02
  5. Step 5: Solve for x
    x = 2,470,445.02/1,530.28
  6. Step 6: Final answer
    x = 1,614.37

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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.