Home / 1,669.20-2,502.08-573.20

Finding the Fourth Proportional to 1,669.20, 2,502.08 and 573.20

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Solution

The fourth proportional to 1,669.20, 2,502.08 and 573.20 is: 859.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.20 : 2,502.08 = 573.20 : x
  2. Step 2: Convert to fraction form
    1,669.20/2,502.08 = 573.20/x
  3. Step 3: Cross multiply
    1,669.20x = 2,502.08 × 573.20
  4. Step 4: Simplify right side
    1,669.20x = 1,434,192.26
  5. Step 5: Solve for x
    x = 1,434,192.26/1,669.20
  6. Step 6: Final answer
    x = 859.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.