Home / 4,279.32-6,419.34-1,357.02

Finding the Fourth Proportional to 4,279.32, 6,419.34 and 1,357.02

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Solution

The fourth proportional to 4,279.32, 6,419.34 and 1,357.02 is: 2,035.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.32 : 6,419.34 = 1,357.02 : x
  2. Step 2: Convert to fraction form
    4,279.32/6,419.34 = 1,357.02/x
  3. Step 3: Cross multiply
    4,279.32x = 6,419.34 × 1,357.02
  4. Step 4: Simplify right side
    4,279.32x = 8,711,172.77
  5. Step 5: Solve for x
    x = 8,711,172.77/4,279.32
  6. Step 6: Final answer
    x = 2,035.64

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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.