Home / 5,253.35-7,879.28-1,555.43

Finding the Fourth Proportional to 5,253.35, 7,879.28 and 1,555.43

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Solution

The fourth proportional to 5,253.35, 7,879.28 and 1,555.43 is: 2,332.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,253.35 : 7,879.28 = 1,555.43 : x
  2. Step 2: Convert to fraction form
    5,253.35/7,879.28 = 1,555.43/x
  3. Step 3: Cross multiply
    5,253.35x = 7,879.28 × 1,555.43
  4. Step 4: Simplify right side
    5,253.35x = 12,255,621.32
  5. Step 5: Solve for x
    x = 12,255,621.32/5,253.35
  6. Step 6: Final answer
    x = 2,332.92

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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.