Home / 1,623.77-2,424.61-1,290.96

Finding the Fourth Proportional to 1,623.77, 2,424.61 and 1,290.96

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Solution

The fourth proportional to 1,623.77, 2,424.61 and 1,290.96 is: 1,927.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623.77 : 2,424.61 = 1,290.96 : x
  2. Step 2: Convert to fraction form
    1,623.77/2,424.61 = 1,290.96/x
  3. Step 3: Cross multiply
    1,623.77x = 2,424.61 × 1,290.96
  4. Step 4: Simplify right side
    1,623.77x = 3,130,074.53
  5. Step 5: Solve for x
    x = 3,130,074.53/1,623.77
  6. Step 6: Final answer
    x = 1,927.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.