Home / 1,553.45-2,318.80-1,368.92

Finding the Fourth Proportional to 1,553.45, 2,318.80 and 1,368.92

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Solution

The fourth proportional to 1,553.45, 2,318.80 and 1,368.92 is: 2,043.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.45 : 2,318.80 = 1,368.92 : x
  2. Step 2: Convert to fraction form
    1,553.45/2,318.80 = 1,368.92/x
  3. Step 3: Cross multiply
    1,553.45x = 2,318.80 × 1,368.92
  4. Step 4: Simplify right side
    1,553.45x = 3,174,241.67
  5. Step 5: Solve for x
    x = 3,174,241.67/1,553.45
  6. Step 6: Final answer
    x = 2,043.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.