Home / 3,440.64-4,748.10-1,868.78

Finding the Fourth Proportional to 3,440.64, 4,748.10 and 1,868.78

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Solution

The fourth proportional to 3,440.64, 4,748.10 and 1,868.78 is: 2,578.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.64 : 4,748.10 = 1,868.78 : x
  2. Step 2: Convert to fraction form
    3,440.64/4,748.10 = 1,868.78/x
  3. Step 3: Cross multiply
    3,440.64x = 4,748.10 × 1,868.78
  4. Step 4: Simplify right side
    3,440.64x = 8,873,154.32
  5. Step 5: Solve for x
    x = 8,873,154.32/3,440.64
  6. Step 6: Final answer
    x = 2,578.93

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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.