Home / 2,118.93-2,924.13-1,174.87

Finding the Fourth Proportional to 2,118.93, 2,924.13 and 1,174.87

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Solution

The fourth proportional to 2,118.93, 2,924.13 and 1,174.87 is: 1,621.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118.93 : 2,924.13 = 1,174.87 : x
  2. Step 2: Convert to fraction form
    2,118.93/2,924.13 = 1,174.87/x
  3. Step 3: Cross multiply
    2,118.93x = 2,924.13 × 1,174.87
  4. Step 4: Simplify right side
    2,118.93x = 3,435,475.52
  5. Step 5: Solve for x
    x = 3,435,475.52/2,118.93
  6. Step 6: Final answer
    x = 1,621.33

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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.