Home / 2,417.60-3,616.80-2,187.20

Finding the Fourth Proportional to 2,417.60, 3,616.80 and 2,187.20

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Solution

The fourth proportional to 2,417.60, 3,616.80 and 2,187.20 is: 3,272.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,417.60 : 3,616.80 = 2,187.20 : x
  2. Step 2: Convert to fraction form
    2,417.60/3,616.80 = 2,187.20/x
  3. Step 3: Cross multiply
    2,417.60x = 3,616.80 × 2,187.20
  4. Step 4: Simplify right side
    2,417.60x = 7,910,664.96
  5. Step 5: Solve for x
    x = 7,910,664.96/2,417.60
  6. Step 6: Final answer
    x = 3,272.11

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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.