Home / 2,990.17-4,462.65-2,912.41

Finding the Fourth Proportional to 2,990.17, 4,462.65 and 2,912.41

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Solution

The fourth proportional to 2,990.17, 4,462.65 and 2,912.41 is: 4,346.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.17 : 4,462.65 = 2,912.41 : x
  2. Step 2: Convert to fraction form
    2,990.17/4,462.65 = 2,912.41/x
  3. Step 3: Cross multiply
    2,990.17x = 4,462.65 × 2,912.41
  4. Step 4: Simplify right side
    2,990.17x = 12,997,066.49
  5. Step 5: Solve for x
    x = 12,997,066.49/2,990.17
  6. Step 6: Final answer
    x = 4,346.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.