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Finding the Fourth Proportional to 1,155.04, 1,593.94 and 657.58

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Solution

The fourth proportional to 1,155.04, 1,593.94 and 657.58 is: 907.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.04 : 1,593.94 = 657.58 : x
  2. Step 2: Convert to fraction form
    1,155.04/1,593.94 = 657.58/x
  3. Step 3: Cross multiply
    1,155.04x = 1,593.94 × 657.58
  4. Step 4: Simplify right side
    1,155.04x = 1,048,143.07
  5. Step 5: Solve for x
    x = 1,048,143.07/1,155.04
  6. Step 6: Final answer
    x = 907.45

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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.