Home / 4,248.10-6,371.98-1,128.12

Finding the Fourth Proportional to 4,248.10, 6,371.98 and 1,128.12

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Solution

The fourth proportional to 4,248.10, 6,371.98 and 1,128.12 is: 1,692.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,248.10 : 6,371.98 = 1,128.12 : x
  2. Step 2: Convert to fraction form
    4,248.10/6,371.98 = 1,128.12/x
  3. Step 3: Cross multiply
    4,248.10x = 6,371.98 × 1,128.12
  4. Step 4: Simplify right side
    4,248.10x = 7,188,331.36
  5. Step 5: Solve for x
    x = 7,188,331.36/4,248.10
  6. Step 6: Final answer
    x = 1,692.13

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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.