Home / 3,097.20-4,648.70-1,637.40

Finding the Fourth Proportional to 3,097.20, 4,648.70 and 1,637.40

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Solution

The fourth proportional to 3,097.20, 4,648.70 and 1,637.40 is: 2,457.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,097.20 : 4,648.70 = 1,637.40 : x
  2. Step 2: Convert to fraction form
    3,097.20/4,648.70 = 1,637.40/x
  3. Step 3: Cross multiply
    3,097.20x = 4,648.70 × 1,637.40
  4. Step 4: Simplify right side
    3,097.20x = 7,611,781.38
  5. Step 5: Solve for x
    x = 7,611,781.38/3,097.20
  6. Step 6: Final answer
    x = 2,457.63

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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.