Home / 2,376.09-3,559.68-1,988.55

Finding the Fourth Proportional to 2,376.09, 3,559.68 and 1,988.55

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Solution

The fourth proportional to 2,376.09, 3,559.68 and 1,988.55 is: 2,979.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.09 : 3,559.68 = 1,988.55 : x
  2. Step 2: Convert to fraction form
    2,376.09/3,559.68 = 1,988.55/x
  3. Step 3: Cross multiply
    2,376.09x = 3,559.68 × 1,988.55
  4. Step 4: Simplify right side
    2,376.09x = 7,078,601.66
  5. Step 5: Solve for x
    x = 7,078,601.66/2,376.09
  6. Step 6: Final answer
    x = 2,979.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.