Home / 4,187.85-6,281.63-1,690.11

Finding the Fourth Proportional to 4,187.85, 6,281.63 and 1,690.11

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Solution

The fourth proportional to 4,187.85, 6,281.63 and 1,690.11 is: 2,535.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.85 : 6,281.63 = 1,690.11 : x
  2. Step 2: Convert to fraction form
    4,187.85/6,281.63 = 1,690.11/x
  3. Step 3: Cross multiply
    4,187.85x = 6,281.63 × 1,690.11
  4. Step 4: Simplify right side
    4,187.85x = 10,616,637.23
  5. Step 5: Solve for x
    x = 10,616,637.23/4,187.85
  6. Step 6: Final answer
    x = 2,535.10

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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.