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Finding the Fourth Proportional to 1,165.15, 1,608.11 and 1,041.49

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Solution

The fourth proportional to 1,165.15, 1,608.11 and 1,041.49 is: 1,437.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.15 : 1,608.11 = 1,041.49 : x
  2. Step 2: Convert to fraction form
    1,165.15/1,608.11 = 1,041.49/x
  3. Step 3: Cross multiply
    1,165.15x = 1,608.11 × 1,041.49
  4. Step 4: Simplify right side
    1,165.15x = 1,674,831.19
  5. Step 5: Solve for x
    x = 1,674,831.19/1,165.15
  6. Step 6: Final answer
    x = 1,437.44

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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.