Home / 3,483.85-4,807.87-1,991.37

Finding the Fourth Proportional to 3,483.85, 4,807.87 and 1,991.37

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Solution

The fourth proportional to 3,483.85, 4,807.87 and 1,991.37 is: 2,748.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,483.85 : 4,807.87 = 1,991.37 : x
  2. Step 2: Convert to fraction form
    3,483.85/4,807.87 = 1,991.37/x
  3. Step 3: Cross multiply
    3,483.85x = 4,807.87 × 1,991.37
  4. Step 4: Simplify right side
    3,483.85x = 9,574,248.08
  5. Step 5: Solve for x
    x = 9,574,248.08/3,483.85
  6. Step 6: Final answer
    x = 2,748.18

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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.