Home / 2,621.64-3,618.21-2,400.19

Finding the Fourth Proportional to 2,621.64, 3,618.21 and 2,400.19

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Solution

The fourth proportional to 2,621.64, 3,618.21 and 2,400.19 is: 3,312.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621.64 : 3,618.21 = 2,400.19 : x
  2. Step 2: Convert to fraction form
    2,621.64/3,618.21 = 2,400.19/x
  3. Step 3: Cross multiply
    2,621.64x = 3,618.21 × 2,400.19
  4. Step 4: Simplify right side
    2,621.64x = 8,684,391.46
  5. Step 5: Solve for x
    x = 8,684,391.46/2,621.64
  6. Step 6: Final answer
    x = 3,312.58

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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.