Home / 1,925.75-2,657.85-1,180.12

Finding the Fourth Proportional to 1,925.75, 2,657.85 and 1,180.12

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Solution

The fourth proportional to 1,925.75, 2,657.85 and 1,180.12 is: 1,628.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925.75 : 2,657.85 = 1,180.12 : x
  2. Step 2: Convert to fraction form
    1,925.75/2,657.85 = 1,180.12/x
  3. Step 3: Cross multiply
    1,925.75x = 2,657.85 × 1,180.12
  4. Step 4: Simplify right side
    1,925.75x = 3,136,580.83
  5. Step 5: Solve for x
    x = 3,136,580.83/1,925.75
  6. Step 6: Final answer
    x = 1,628.76

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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.