Home / 3,875.15-5,812.58-1,242.59

Finding the Fourth Proportional to 3,875.15, 5,812.58 and 1,242.59

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Solution

The fourth proportional to 3,875.15, 5,812.58 and 1,242.59 is: 1,863.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.15 : 5,812.58 = 1,242.59 : x
  2. Step 2: Convert to fraction form
    3,875.15/5,812.58 = 1,242.59/x
  3. Step 3: Cross multiply
    3,875.15x = 5,812.58 × 1,242.59
  4. Step 4: Simplify right side
    3,875.15x = 7,222,618.51
  5. Step 5: Solve for x
    x = 7,222,618.51/3,875.15
  6. Step 6: Final answer
    x = 1,863.83

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1.5x scale

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.