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Finding the Fourth Proportional to 1,925.93, 2,887.59 and 755.20

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Solution

The fourth proportional to 1,925.93, 2,887.59 and 755.20 is: 1,132.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925.93 : 2,887.59 = 755.20 : x
  2. Step 2: Convert to fraction form
    1,925.93/2,887.59 = 755.20/x
  3. Step 3: Cross multiply
    1,925.93x = 2,887.59 × 755.20
  4. Step 4: Simplify right side
    1,925.93x = 2,180,707.97
  5. Step 5: Solve for x
    x = 2,180,707.97/1,925.93
  6. Step 6: Final answer
    x = 1,132.29

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1.5x scale

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.