Home / 1,445.13-1,995.24-973.56

Finding the Fourth Proportional to 1,445.13, 1,995.24 and 973.56

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Solution

The fourth proportional to 1,445.13, 1,995.24 and 973.56 is: 1,344.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.13 : 1,995.24 = 973.56 : x
  2. Step 2: Convert to fraction form
    1,445.13/1,995.24 = 973.56/x
  3. Step 3: Cross multiply
    1,445.13x = 1,995.24 × 973.56
  4. Step 4: Simplify right side
    1,445.13x = 1,942,485.85
  5. Step 5: Solve for x
    x = 1,942,485.85/1,445.13
  6. Step 6: Final answer
    x = 1,344.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.