Home / 4,277.68-6,416.88-1,355.20

Finding the Fourth Proportional to 4,277.68, 6,416.88 and 1,355.20

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Solution

The fourth proportional to 4,277.68, 6,416.88 and 1,355.20 is: 2,032.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,277.68 : 6,416.88 = 1,355.20 : x
  2. Step 2: Convert to fraction form
    4,277.68/6,416.88 = 1,355.20/x
  3. Step 3: Cross multiply
    4,277.68x = 6,416.88 × 1,355.20
  4. Step 4: Simplify right side
    4,277.68x = 8,696,155.78
  5. Step 5: Solve for x
    x = 8,696,155.78/4,277.68
  6. Step 6: Final answer
    x = 2,032.91

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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.