Home / 1,530.21-2,109.75-1,250.16

Finding the Fourth Proportional to 1,530.21, 2,109.75 and 1,250.16

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Solution

The fourth proportional to 1,530.21, 2,109.75 and 1,250.16 is: 1,723.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530.21 : 2,109.75 = 1,250.16 : x
  2. Step 2: Convert to fraction form
    1,530.21/2,109.75 = 1,250.16/x
  3. Step 3: Cross multiply
    1,530.21x = 2,109.75 × 1,250.16
  4. Step 4: Simplify right side
    1,530.21x = 2,637,525.06
  5. Step 5: Solve for x
    x = 2,637,525.06/1,530.21
  6. Step 6: Final answer
    x = 1,723.64

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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.