Home / 1,573.36-2,168.50-1,153.60

Finding the Fourth Proportional to 1,573.36, 2,168.50 and 1,153.60

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Solution

The fourth proportional to 1,573.36, 2,168.50 and 1,153.60 is: 1,589.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,573.36 : 2,168.50 = 1,153.60 : x
  2. Step 2: Convert to fraction form
    1,573.36/2,168.50 = 1,153.60/x
  3. Step 3: Cross multiply
    1,573.36x = 2,168.50 × 1,153.60
  4. Step 4: Simplify right side
    1,573.36x = 2,501,581.60
  5. Step 5: Solve for x
    x = 2,501,581.60/1,573.36
  6. Step 6: Final answer
    x = 1,589.96

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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.