Home / 3,931.61-5,427.94-2,440.35

Finding the Fourth Proportional to 3,931.61, 5,427.94 and 2,440.35

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Solution

The fourth proportional to 3,931.61, 5,427.94 and 2,440.35 is: 3,369.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.61 : 5,427.94 = 2,440.35 : x
  2. Step 2: Convert to fraction form
    3,931.61/5,427.94 = 2,440.35/x
  3. Step 3: Cross multiply
    3,931.61x = 5,427.94 × 2,440.35
  4. Step 4: Simplify right side
    3,931.61x = 13,246,080.26
  5. Step 5: Solve for x
    x = 13,246,080.26/3,931.61
  6. Step 6: Final answer
    x = 3,369.12

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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.