Home / 1,683.20-2,525.40-587.51

Finding the Fourth Proportional to 1,683.20, 2,525.40 and 587.51

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Solution

The fourth proportional to 1,683.20, 2,525.40 and 587.51 is: 881.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683.20 : 2,525.40 = 587.51 : x
  2. Step 2: Convert to fraction form
    1,683.20/2,525.40 = 587.51/x
  3. Step 3: Cross multiply
    1,683.20x = 2,525.40 × 587.51
  4. Step 4: Simplify right side
    1,683.20x = 1,483,685.13
  5. Step 5: Solve for x
    x = 1,483,685.13/1,683.20
  6. Step 6: Final answer
    x = 881.47

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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.