Home / 1,345.15-2,017.73-933.87

Finding the Fourth Proportional to 1,345.15, 2,017.73 and 933.87

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Solution

The fourth proportional to 1,345.15, 2,017.73 and 933.87 is: 1,400.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345.15 : 2,017.73 = 933.87 : x
  2. Step 2: Convert to fraction form
    1,345.15/2,017.73 = 933.87/x
  3. Step 3: Cross multiply
    1,345.15x = 2,017.73 × 933.87
  4. Step 4: Simplify right side
    1,345.15x = 1,884,297.52
  5. Step 5: Solve for x
    x = 1,884,297.52/1,345.15
  6. Step 6: Final answer
    x = 1,400.81

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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.