Home / 2,447.64-3,377.34-1,385.10

Finding the Fourth Proportional to 2,447.64, 3,377.34 and 1,385.10

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Solution

The fourth proportional to 2,447.64, 3,377.34 and 1,385.10 is: 1,911.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.64 : 3,377.34 = 1,385.10 : x
  2. Step 2: Convert to fraction form
    2,447.64/3,377.34 = 1,385.10/x
  3. Step 3: Cross multiply
    2,447.64x = 3,377.34 × 1,385.10
  4. Step 4: Simplify right side
    2,447.64x = 4,677,953.63
  5. Step 5: Solve for x
    x = 4,677,953.63/2,447.64
  6. Step 6: Final answer
    x = 1,911.21

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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.