Home / 1,525.51-2,104.53-1,170.80

Finding the Fourth Proportional to 1,525.51, 2,104.53 and 1,170.80

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Solution

The fourth proportional to 1,525.51, 2,104.53 and 1,170.80 is: 1,615.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,525.51 : 2,104.53 = 1,170.80 : x
  2. Step 2: Convert to fraction form
    1,525.51/2,104.53 = 1,170.80/x
  3. Step 3: Cross multiply
    1,525.51x = 2,104.53 × 1,170.80
  4. Step 4: Simplify right side
    1,525.51x = 2,463,995.13
  5. Step 5: Solve for x
    x = 2,463,995.13/1,525.51
  6. Step 6: Final answer
    x = 1,615.20

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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.