Home / 2,545.90-3,818.85-1,969.18

Finding the Fourth Proportional to 2,545.90, 3,818.85 and 1,969.18

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Solution

The fourth proportional to 2,545.90, 3,818.85 and 1,969.18 is: 2,953.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,545.90 : 3,818.85 = 1,969.18 : x
  2. Step 2: Convert to fraction form
    2,545.90/3,818.85 = 1,969.18/x
  3. Step 3: Cross multiply
    2,545.90x = 3,818.85 × 1,969.18
  4. Step 4: Simplify right side
    2,545.90x = 7,520,003.04
  5. Step 5: Solve for x
    x = 7,520,003.04/2,545.90
  6. Step 6: Final answer
    x = 2,953.77

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1.5x scale

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.