Home / 5,254.07-7,878.35-1,555.79

Finding the Fourth Proportional to 5,254.07, 7,878.35 and 1,555.79

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Solution

The fourth proportional to 5,254.07, 7,878.35 and 1,555.79 is: 2,332.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,254.07 : 7,878.35 = 1,555.79 : x
  2. Step 2: Convert to fraction form
    5,254.07/7,878.35 = 1,555.79/x
  3. Step 3: Cross multiply
    5,254.07x = 7,878.35 × 1,555.79
  4. Step 4: Simplify right side
    5,254.07x = 12,257,010.98
  5. Step 5: Solve for x
    x = 12,257,010.98/5,254.07
  6. Step 6: Final answer
    x = 2,332.86

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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.