Home / 3,538.88-4,885.44-2,123.36

Finding the Fourth Proportional to 3,538.88, 4,885.44 and 2,123.36

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Solution

The fourth proportional to 3,538.88, 4,885.44 and 2,123.36 is: 2,931.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538.88 : 4,885.44 = 2,123.36 : x
  2. Step 2: Convert to fraction form
    3,538.88/4,885.44 = 2,123.36/x
  3. Step 3: Cross multiply
    3,538.88x = 4,885.44 × 2,123.36
  4. Step 4: Simplify right side
    3,538.88x = 10,373,547.88
  5. Step 5: Solve for x
    x = 10,373,547.88/3,538.88
  6. Step 6: Final answer
    x = 2,931.31

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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.