Home / 3,988.64-5,501.52-2,853.23

Finding the Fourth Proportional to 3,988.64, 5,501.52 and 2,853.23

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Solution

The fourth proportional to 3,988.64, 5,501.52 and 2,853.23 is: 3,935.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.64 : 5,501.52 = 2,853.23 : x
  2. Step 2: Convert to fraction form
    3,988.64/5,501.52 = 2,853.23/x
  3. Step 3: Cross multiply
    3,988.64x = 5,501.52 × 2,853.23
  4. Step 4: Simplify right side
    3,988.64x = 15,697,074.40
  5. Step 5: Solve for x
    x = 15,697,074.40/3,988.64
  6. Step 6: Final answer
    x = 3,935.44

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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.