Home / 3,291.81-4,545.73-2,114.93

Finding the Fourth Proportional to 3,291.81, 4,545.73 and 2,114.93

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Solution

The fourth proportional to 3,291.81, 4,545.73 and 2,114.93 is: 2,920.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.81 : 4,545.73 = 2,114.93 : x
  2. Step 2: Convert to fraction form
    3,291.81/4,545.73 = 2,114.93/x
  3. Step 3: Cross multiply
    3,291.81x = 4,545.73 × 2,114.93
  4. Step 4: Simplify right side
    3,291.81x = 9,613,900.75
  5. Step 5: Solve for x
    x = 9,613,900.75/3,291.81
  6. Step 6: Final answer
    x = 2,920.55

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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.