Home / 5,254.08-7,878.42-1,555.85

Finding the Fourth Proportional to 5,254.08, 7,878.42 and 1,555.85

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Solution

The fourth proportional to 5,254.08, 7,878.42 and 1,555.85 is: 2,332.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,254.08 : 7,878.42 = 1,555.85 : x
  2. Step 2: Convert to fraction form
    5,254.08/7,878.42 = 1,555.85/x
  3. Step 3: Cross multiply
    5,254.08x = 7,878.42 × 1,555.85
  4. Step 4: Simplify right side
    5,254.08x = 12,257,600.36
  5. Step 5: Solve for x
    x = 12,257,600.36/5,254.08
  6. Step 6: Final answer
    x = 2,332.97

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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.