Home / 4,278.56-6,417.28-1,357.12

Finding the Fourth Proportional to 4,278.56, 6,417.28 and 1,357.12

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Solution

The fourth proportional to 4,278.56, 6,417.28 and 1,357.12 is: 2,035.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.56 : 6,417.28 = 1,357.12 : x
  2. Step 2: Convert to fraction form
    4,278.56/6,417.28 = 1,357.12/x
  3. Step 3: Cross multiply
    4,278.56x = 6,417.28 × 1,357.12
  4. Step 4: Simplify right side
    4,278.56x = 8,709,019.03
  5. Step 5: Solve for x
    x = 8,709,019.03/4,278.56
  6. Step 6: Final answer
    x = 2,035.50

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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.