Home / 4,292.40-6,427.56-2,974.28

Finding the Fourth Proportional to 4,292.40, 6,427.56 and 2,974.28

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Solution

The fourth proportional to 4,292.40, 6,427.56 and 2,974.28 is: 4,453.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,292.40 : 6,427.56 = 2,974.28 : x
  2. Step 2: Convert to fraction form
    4,292.40/6,427.56 = 2,974.28/x
  3. Step 3: Cross multiply
    4,292.40x = 6,427.56 × 2,974.28
  4. Step 4: Simplify right side
    4,292.40x = 19,117,363.16
  5. Step 5: Solve for x
    x = 19,117,363.16/4,292.40
  6. Step 6: Final answer
    x = 4,453.77

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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.