Home / 1,553.48-2,142.96-1,335.32

Finding the Fourth Proportional to 1,553.48, 2,142.96 and 1,335.32

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Solution

The fourth proportional to 1,553.48, 2,142.96 and 1,335.32 is: 1,842.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.48 : 2,142.96 = 1,335.32 : x
  2. Step 2: Convert to fraction form
    1,553.48/2,142.96 = 1,335.32/x
  3. Step 3: Cross multiply
    1,553.48x = 2,142.96 × 1,335.32
  4. Step 4: Simplify right side
    1,553.48x = 2,861,537.35
  5. Step 5: Solve for x
    x = 2,861,537.35/1,553.48
  6. Step 6: Final answer
    x = 1,842.02

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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.