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Finding the Fourth Proportional to 1,155.26, 1,733.49 and 375.50

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Solution

The fourth proportional to 1,155.26, 1,733.49 and 375.50 is: 563.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.26 : 1,733.49 = 375.50 : x
  2. Step 2: Convert to fraction form
    1,155.26/1,733.49 = 375.50/x
  3. Step 3: Cross multiply
    1,155.26x = 1,733.49 × 375.50
  4. Step 4: Simplify right side
    1,155.26x = 650,925.50
  5. Step 5: Solve for x
    x = 650,925.50/1,155.26
  6. Step 6: Final answer
    x = 563.45

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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.