Home / 1,050.45-1,572.32-992.13

Finding the Fourth Proportional to 1,050.45, 1,572.32 and 992.13

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Solution

The fourth proportional to 1,050.45, 1,572.32 and 992.13 is: 1,485.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.45 : 1,572.32 = 992.13 : x
  2. Step 2: Convert to fraction form
    1,050.45/1,572.32 = 992.13/x
  3. Step 3: Cross multiply
    1,050.45x = 1,572.32 × 992.13
  4. Step 4: Simplify right side
    1,050.45x = 1,559,933.02
  5. Step 5: Solve for x
    x = 1,559,933.02/1,050.45
  6. Step 6: Final answer
    x = 1,485.02

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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.