Home / 1,925.08-2,656.48-1,138.96

Finding the Fourth Proportional to 1,925.08, 2,656.48 and 1,138.96

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Solution

The fourth proportional to 1,925.08, 2,656.48 and 1,138.96 is: 1,571.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925.08 : 2,656.48 = 1,138.96 : x
  2. Step 2: Convert to fraction form
    1,925.08/2,656.48 = 1,138.96/x
  3. Step 3: Cross multiply
    1,925.08x = 2,656.48 × 1,138.96
  4. Step 4: Simplify right side
    1,925.08x = 3,025,624.46
  5. Step 5: Solve for x
    x = 3,025,624.46/1,925.08
  6. Step 6: Final answer
    x = 1,571.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.