Home / 7,139.34-10,706.58-2,457.54

Finding the Fourth Proportional to 7,139.34, 10,706.58 and 2,457.54

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Solution

The fourth proportional to 7,139.34, 10,706.58 and 2,457.54 is: 3,685.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139.34 : 10,706.58 = 2,457.54 : x
  2. Step 2: Convert to fraction form
    7,139.34/10,706.58 = 2,457.54/x
  3. Step 3: Cross multiply
    7,139.34x = 10,706.58 × 2,457.54
  4. Step 4: Simplify right side
    7,139.34x = 26,311,848.61
  5. Step 5: Solve for x
    x = 26,311,848.61/7,139.34
  6. Step 6: Final answer
    x = 3,685.47

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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.