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Finding the Fourth Proportional to 2,385.04, 3,577.79 and 741.15

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Solution

The fourth proportional to 2,385.04, 3,577.79 and 741.15 is: 1,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,385.04 : 3,577.79 = 741.15 : x
  2. Step 2: Convert to fraction form
    2,385.04/3,577.79 = 741.15/x
  3. Step 3: Cross multiply
    2,385.04x = 3,577.79 × 741.15
  4. Step 4: Simplify right side
    2,385.04x = 2,651,679.06
  5. Step 5: Solve for x
    x = 2,651,679.06/2,385.04
  6. Step 6: Final answer
    x = 1,111.80

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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.