Home / 2,690.10-4,035.18-841.08

Finding the Fourth Proportional to 2,690.10, 4,035.18 and 841.08

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Solution

The fourth proportional to 2,690.10, 4,035.18 and 841.08 is: 1,261.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.10 : 4,035.18 = 841.08 : x
  2. Step 2: Convert to fraction form
    2,690.10/4,035.18 = 841.08/x
  3. Step 3: Cross multiply
    2,690.10x = 4,035.18 × 841.08
  4. Step 4: Simplify right side
    2,690.10x = 3,393,909.19
  5. Step 5: Solve for x
    x = 3,393,909.19/2,690.10
  6. Step 6: Final answer
    x = 1,261.63

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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.