Home / 4,955.21-7,432.80-1,257.42

Finding the Fourth Proportional to 4,955.21, 7,432.80 and 1,257.42

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Solution

The fourth proportional to 4,955.21, 7,432.80 and 1,257.42 is: 1,886.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,955.21 : 7,432.80 = 1,257.42 : x
  2. Step 2: Convert to fraction form
    4,955.21/7,432.80 = 1,257.42/x
  3. Step 3: Cross multiply
    4,955.21x = 7,432.80 × 1,257.42
  4. Step 4: Simplify right side
    4,955.21x = 9,346,174.53
  5. Step 5: Solve for x
    x = 9,346,174.53/4,955.21
  6. Step 6: Final answer
    x = 1,886.13

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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.