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Finding the Fourth Proportional to 1,340.37, 2,010.61 and 366.47

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Solution

The fourth proportional to 1,340.37, 2,010.61 and 366.47 is: 549.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340.37 : 2,010.61 = 366.47 : x
  2. Step 2: Convert to fraction form
    1,340.37/2,010.61 = 366.47/x
  3. Step 3: Cross multiply
    1,340.37x = 2,010.61 × 366.47
  4. Step 4: Simplify right side
    1,340.37x = 736,818.19
  5. Step 5: Solve for x
    x = 736,818.19/1,340.37
  6. Step 6: Final answer
    x = 549.71

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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.