Home / 4,924.88-7,387.46-1,638.30

Finding the Fourth Proportional to 4,924.88, 7,387.46 and 1,638.30

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Solution

The fourth proportional to 4,924.88, 7,387.46 and 1,638.30 is: 2,457.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,924.88 : 7,387.46 = 1,638.30 : x
  2. Step 2: Convert to fraction form
    4,924.88/7,387.46 = 1,638.30/x
  3. Step 3: Cross multiply
    4,924.88x = 7,387.46 × 1,638.30
  4. Step 4: Simplify right side
    4,924.88x = 12,102,875.72
  5. Step 5: Solve for x
    x = 12,102,875.72/4,924.88
  6. Step 6: Final answer
    x = 2,457.50

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Double scale
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Similar ratio
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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.