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Finding the Fourth Proportional to 2,390.97, 3,562.98 and 2,312.67

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Solution

The fourth proportional to 2,390.97, 3,562.98 and 2,312.67 is: 3,446.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.97 : 3,562.98 = 2,312.67 : x
  2. Step 2: Convert to fraction form
    2,390.97/3,562.98 = 2,312.67/x
  3. Step 3: Cross multiply
    2,390.97x = 3,562.98 × 2,312.67
  4. Step 4: Simplify right side
    2,390.97x = 8,239,996.96
  5. Step 5: Solve for x
    x = 8,239,996.96/2,390.97
  6. Step 6: Final answer
    x = 3,446.30

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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.