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Finding the Fourth Proportional to 1,165.60, 1,608.12 and 746.02

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Solution

The fourth proportional to 1,165.60, 1,608.12 and 746.02 is: 1,029.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.60 : 1,608.12 = 746.02 : x
  2. Step 2: Convert to fraction form
    1,165.60/1,608.12 = 746.02/x
  3. Step 3: Cross multiply
    1,165.60x = 1,608.12 × 746.02
  4. Step 4: Simplify right side
    1,165.60x = 1,199,689.68
  5. Step 5: Solve for x
    x = 1,199,689.68/1,165.60
  6. Step 6: Final answer
    x = 1,029.25

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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.