Home / 2,620.63-3,616.45-1,558.92

Finding the Fourth Proportional to 2,620.63, 3,616.45 and 1,558.92

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Solution

The fourth proportional to 2,620.63, 3,616.45 and 1,558.92 is: 2,151.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.63 : 3,616.45 = 1,558.92 : x
  2. Step 2: Convert to fraction form
    2,620.63/3,616.45 = 1,558.92/x
  3. Step 3: Cross multiply
    2,620.63x = 3,616.45 × 1,558.92
  4. Step 4: Simplify right side
    2,620.63x = 5,637,756.23
  5. Step 5: Solve for x
    x = 5,637,756.23/2,620.63
  6. Step 6: Final answer
    x = 2,151.30

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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.