Home / 2,913.70-4,370.55-1,992.10

Finding the Fourth Proportional to 2,913.70, 4,370.55 and 1,992.10

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Solution

The fourth proportional to 2,913.70, 4,370.55 and 1,992.10 is: 2,988.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.70 : 4,370.55 = 1,992.10 : x
  2. Step 2: Convert to fraction form
    2,913.70/4,370.55 = 1,992.10/x
  3. Step 3: Cross multiply
    2,913.70x = 4,370.55 × 1,992.10
  4. Step 4: Simplify right side
    2,913.70x = 8,706,572.66
  5. Step 5: Solve for x
    x = 8,706,572.66/2,913.70
  6. Step 6: Final answer
    x = 2,988.15

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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.