Home / 2,621.77-3,618.08-1,442.83

Finding the Fourth Proportional to 2,621.77, 3,618.08 and 1,442.83

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Solution

The fourth proportional to 2,621.77, 3,618.08 and 1,442.83 is: 1,991.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621.77 : 3,618.08 = 1,442.83 : x
  2. Step 2: Convert to fraction form
    2,621.77/3,618.08 = 1,442.83/x
  3. Step 3: Cross multiply
    2,621.77x = 3,618.08 × 1,442.83
  4. Step 4: Simplify right side
    2,621.77x = 5,220,274.37
  5. Step 5: Solve for x
    x = 5,220,274.37/2,621.77
  6. Step 6: Final answer
    x = 1,991.13

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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.