Home / 3,125.64-4,690.08-1,393.92

Finding the Fourth Proportional to 3,125.64, 4,690.08 and 1,393.92

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Solution

The fourth proportional to 3,125.64, 4,690.08 and 1,393.92 is: 2,091.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.64 : 4,690.08 = 1,393.92 : x
  2. Step 2: Convert to fraction form
    3,125.64/4,690.08 = 1,393.92/x
  3. Step 3: Cross multiply
    3,125.64x = 4,690.08 × 1,393.92
  4. Step 4: Simplify right side
    3,125.64x = 6,537,596.31
  5. Step 5: Solve for x
    x = 6,537,596.31/3,125.64
  6. Step 6: Final answer
    x = 2,091.60

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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.