Home / 1,521.48-2,287.32-1,200.72

Finding the Fourth Proportional to 1,521.48, 2,287.32 and 1,200.72

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Solution

The fourth proportional to 1,521.48, 2,287.32 and 1,200.72 is: 1,805.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.48 : 2,287.32 = 1,200.72 : x
  2. Step 2: Convert to fraction form
    1,521.48/2,287.32 = 1,200.72/x
  3. Step 3: Cross multiply
    1,521.48x = 2,287.32 × 1,200.72
  4. Step 4: Simplify right side
    1,521.48x = 2,746,430.87
  5. Step 5: Solve for x
    x = 2,746,430.87/1,521.48
  6. Step 6: Final answer
    x = 1,805.10

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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.