Home / 5,125.65-7,688.46-1,615.95

Finding the Fourth Proportional to 5,125.65, 7,688.46 and 1,615.95

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Solution

The fourth proportional to 5,125.65, 7,688.46 and 1,615.95 is: 2,423.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.65 : 7,688.46 = 1,615.95 : x
  2. Step 2: Convert to fraction form
    5,125.65/7,688.46 = 1,615.95/x
  3. Step 3: Cross multiply
    5,125.65x = 7,688.46 × 1,615.95
  4. Step 4: Simplify right side
    5,125.65x = 12,424,166.94
  5. Step 5: Solve for x
    x = 12,424,166.94/5,125.65
  6. Step 6: Final answer
    x = 2,423.92

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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.