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Finding the Fourth Proportional to 3,973.68, 5,482.88 and 2,401.86

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Solution

The fourth proportional to 3,973.68, 5,482.88 and 2,401.86 is: 3,314.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,973.68 : 5,482.88 = 2,401.86 : x
  2. Step 2: Convert to fraction form
    3,973.68/5,482.88 = 2,401.86/x
  3. Step 3: Cross multiply
    3,973.68x = 5,482.88 × 2,401.86
  4. Step 4: Simplify right side
    3,973.68x = 13,169,110.16
  5. Step 5: Solve for x
    x = 13,169,110.16/3,973.68
  6. Step 6: Final answer
    x = 3,314.08

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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.