Home / 1,165.50-1,739.21-1,009.98

Finding the Fourth Proportional to 1,165.50, 1,739.21 and 1,009.98

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Solution

The fourth proportional to 1,165.50, 1,739.21 and 1,009.98 is: 1,507.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.50 : 1,739.21 = 1,009.98 : x
  2. Step 2: Convert to fraction form
    1,165.50/1,739.21 = 1,009.98/x
  3. Step 3: Cross multiply
    1,165.50x = 1,739.21 × 1,009.98
  4. Step 4: Simplify right side
    1,165.50x = 1,756,562.27
  5. Step 5: Solve for x
    x = 1,756,562.27/1,165.50
  6. Step 6: Final answer
    x = 1,507.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.