Home / 1,472.80-2,208.30-741.37

Finding the Fourth Proportional to 1,472.80, 2,208.30 and 741.37

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Solution

The fourth proportional to 1,472.80, 2,208.30 and 741.37 is: 1,111.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472.80 : 2,208.30 = 741.37 : x
  2. Step 2: Convert to fraction form
    1,472.80/2,208.30 = 741.37/x
  3. Step 3: Cross multiply
    1,472.80x = 2,208.30 × 741.37
  4. Step 4: Simplify right side
    1,472.80x = 1,637,167.37
  5. Step 5: Solve for x
    x = 1,637,167.37/1,472.80
  6. Step 6: Final answer
    x = 1,111.60

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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.