Home / 1,180.24-1,629.10-807.07

Finding the Fourth Proportional to 1,180.24, 1,629.10 and 807.07

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Solution

The fourth proportional to 1,180.24, 1,629.10 and 807.07 is: 1,114.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180.24 : 1,629.10 = 807.07 : x
  2. Step 2: Convert to fraction form
    1,180.24/1,629.10 = 807.07/x
  3. Step 3: Cross multiply
    1,180.24x = 1,629.10 × 807.07
  4. Step 4: Simplify right side
    1,180.24x = 1,314,797.74
  5. Step 5: Solve for x
    x = 1,314,797.74/1,180.24
  6. Step 6: Final answer
    x = 1,114.01

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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.