Home / 1,850.48-2,778.96-1,275.92

Finding the Fourth Proportional to 1,850.48, 2,778.96 and 1,275.92

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Solution

The fourth proportional to 1,850.48, 2,778.96 and 1,275.92 is: 1,916.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.48 : 2,778.96 = 1,275.92 : x
  2. Step 2: Convert to fraction form
    1,850.48/2,778.96 = 1,275.92/x
  3. Step 3: Cross multiply
    1,850.48x = 2,778.96 × 1,275.92
  4. Step 4: Simplify right side
    1,850.48x = 3,545,730.64
  5. Step 5: Solve for x
    x = 3,545,730.64/1,850.48
  6. Step 6: Final answer
    x = 1,916.11

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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.