Home / 2,478.39-3,417.63-1,732.08

Finding the Fourth Proportional to 2,478.39, 3,417.63 and 1,732.08

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Solution

The fourth proportional to 2,478.39, 3,417.63 and 1,732.08 is: 2,388.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.39 : 3,417.63 = 1,732.08 : x
  2. Step 2: Convert to fraction form
    2,478.39/3,417.63 = 1,732.08/x
  3. Step 3: Cross multiply
    2,478.39x = 3,417.63 × 1,732.08
  4. Step 4: Simplify right side
    2,478.39x = 5,919,608.57
  5. Step 5: Solve for x
    x = 5,919,608.57/2,478.39
  6. Step 6: Final answer
    x = 2,388.49

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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.