Home / 1,155.40-1,736.24-607.84

Finding the Fourth Proportional to 1,155.40, 1,736.24 and 607.84

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Solution

The fourth proportional to 1,155.40, 1,736.24 and 607.84 is: 913.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.40 : 1,736.24 = 607.84 : x
  2. Step 2: Convert to fraction form
    1,155.40/1,736.24 = 607.84/x
  3. Step 3: Cross multiply
    1,155.40x = 1,736.24 × 607.84
  4. Step 4: Simplify right side
    1,155.40x = 1,055,348.74
  5. Step 5: Solve for x
    x = 1,055,348.74/1,155.40
  6. Step 6: Final answer
    x = 913.41

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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.