Home / 2,389.80-3,299.10-1,506.96

Finding the Fourth Proportional to 2,389.80, 3,299.10 and 1,506.96

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Solution

The fourth proportional to 2,389.80, 3,299.10 and 1,506.96 is: 2,080.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.80 : 3,299.10 = 1,506.96 : x
  2. Step 2: Convert to fraction form
    2,389.80/3,299.10 = 1,506.96/x
  3. Step 3: Cross multiply
    2,389.80x = 3,299.10 × 1,506.96
  4. Step 4: Simplify right side
    2,389.80x = 4,971,611.74
  5. Step 5: Solve for x
    x = 4,971,611.74/2,389.80
  6. Step 6: Final answer
    x = 2,080.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.