Home / 1,623.24-2,240.12-960.53

Finding the Fourth Proportional to 1,623.24, 2,240.12 and 960.53

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Solution

The fourth proportional to 1,623.24, 2,240.12 and 960.53 is: 1,325.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623.24 : 2,240.12 = 960.53 : x
  2. Step 2: Convert to fraction form
    1,623.24/2,240.12 = 960.53/x
  3. Step 3: Cross multiply
    1,623.24x = 2,240.12 × 960.53
  4. Step 4: Simplify right side
    1,623.24x = 2,151,693.66
  5. Step 5: Solve for x
    x = 2,151,693.66/1,623.24
  6. Step 6: Final answer
    x = 1,325.55

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1.5x scale

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.