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Finding the Fourth Proportional to 2,802.40, 3,867.41 and 1,740.75

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Solution

The fourth proportional to 2,802.40, 3,867.41 and 1,740.75 is: 2,402.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.40 : 3,867.41 = 1,740.75 : x
  2. Step 2: Convert to fraction form
    2,802.40/3,867.41 = 1,740.75/x
  3. Step 3: Cross multiply
    2,802.40x = 3,867.41 × 1,740.75
  4. Step 4: Simplify right side
    2,802.40x = 6,732,191.06
  5. Step 5: Solve for x
    x = 6,732,191.06/2,802.40
  6. Step 6: Final answer
    x = 2,402.30

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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.