Home / 4,254.79-6,381.61-1,621.58

Finding the Fourth Proportional to 4,254.79, 6,381.61 and 1,621.58

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Solution

The fourth proportional to 4,254.79, 6,381.61 and 1,621.58 is: 2,432.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,254.79 : 6,381.61 = 1,621.58 : x
  2. Step 2: Convert to fraction form
    4,254.79/6,381.61 = 1,621.58/x
  3. Step 3: Cross multiply
    4,254.79x = 6,381.61 × 1,621.58
  4. Step 4: Simplify right side
    4,254.79x = 10,348,291.14
  5. Step 5: Solve for x
    x = 10,348,291.14/4,254.79
  6. Step 6: Final answer
    x = 2,432.15

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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.