Home / 1,553.98-2,331.38-904.16

Finding the Fourth Proportional to 1,553.98, 2,331.38 and 904.16

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Solution

The fourth proportional to 1,553.98, 2,331.38 and 904.16 is: 1,356.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.98 : 2,331.38 = 904.16 : x
  2. Step 2: Convert to fraction form
    1,553.98/2,331.38 = 904.16/x
  3. Step 3: Cross multiply
    1,553.98x = 2,331.38 × 904.16
  4. Step 4: Simplify right side
    1,553.98x = 2,107,940.54
  5. Step 5: Solve for x
    x = 2,107,940.54/1,553.98
  6. Step 6: Final answer
    x = 1,356.48

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1.5x scale

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.