Home / 2,545.56-3,818.34-1,312.74

Finding the Fourth Proportional to 2,545.56, 3,818.34 and 1,312.74

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Solution

The fourth proportional to 2,545.56, 3,818.34 and 1,312.74 is: 1,969.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,545.56 : 3,818.34 = 1,312.74 : x
  2. Step 2: Convert to fraction form
    2,545.56/3,818.34 = 1,312.74/x
  3. Step 3: Cross multiply
    2,545.56x = 3,818.34 × 1,312.74
  4. Step 4: Simplify right side
    2,545.56x = 5,012,487.65
  5. Step 5: Solve for x
    x = 5,012,487.65/2,545.56
  6. Step 6: Final answer
    x = 1,969.11

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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.