Home / 2,478.08-3,417.96-2,104.47

Finding the Fourth Proportional to 2,478.08, 3,417.96 and 2,104.47

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Solution

The fourth proportional to 2,478.08, 3,417.96 and 2,104.47 is: 2,902.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.08 : 3,417.96 = 2,104.47 : x
  2. Step 2: Convert to fraction form
    2,478.08/3,417.96 = 2,104.47/x
  3. Step 3: Cross multiply
    2,478.08x = 3,417.96 × 2,104.47
  4. Step 4: Simplify right side
    2,478.08x = 7,192,994.28
  5. Step 5: Solve for x
    x = 7,192,994.28/2,478.08
  6. Step 6: Final answer
    x = 2,902.65

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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.