Home / 2,990.72-4,483.35-2,531.45

Finding the Fourth Proportional to 2,990.72, 4,483.35 and 2,531.45

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Solution

The fourth proportional to 2,990.72, 4,483.35 and 2,531.45 is: 3,794.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.72 : 4,483.35 = 2,531.45 : x
  2. Step 2: Convert to fraction form
    2,990.72/4,483.35 = 2,531.45/x
  3. Step 3: Cross multiply
    2,990.72x = 4,483.35 × 2,531.45
  4. Step 4: Simplify right side
    2,990.72x = 11,349,387.57
  5. Step 5: Solve for x
    x = 11,349,387.57/2,990.72
  6. Step 6: Final answer
    x = 3,794.86

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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.