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Finding the Fourth Proportional to 3,802.40, 5,713.20 and 2,416.40

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Solution

The fourth proportional to 3,802.40, 5,713.20 and 2,416.40 is: 3,630.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,802.40 : 5,713.20 = 2,416.40 : x
  2. Step 2: Convert to fraction form
    3,802.40/5,713.20 = 2,416.40/x
  3. Step 3: Cross multiply
    3,802.40x = 5,713.20 × 2,416.40
  4. Step 4: Simplify right side
    3,802.40x = 13,805,376.48
  5. Step 5: Solve for x
    x = 13,805,376.48/3,802.40
  6. Step 6: Final answer
    x = 3,630.70

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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.