Home / 3,201.40-4,418.02-1,875.16

Finding the Fourth Proportional to 3,201.40, 4,418.02 and 1,875.16

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Solution

The fourth proportional to 3,201.40, 4,418.02 and 1,875.16 is: 2,587.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.40 : 4,418.02 = 1,875.16 : x
  2. Step 2: Convert to fraction form
    3,201.40/4,418.02 = 1,875.16/x
  3. Step 3: Cross multiply
    3,201.40x = 4,418.02 × 1,875.16
  4. Step 4: Simplify right side
    3,201.40x = 8,284,494.38
  5. Step 5: Solve for x
    x = 8,284,494.38/3,201.40
  6. Step 6: Final answer
    x = 2,587.77

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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.