Home / 4,117.60-6,179.64-1,521.28

Finding the Fourth Proportional to 4,117.60, 6,179.64 and 1,521.28

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Solution

The fourth proportional to 4,117.60, 6,179.64 and 1,521.28 is: 2,283.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,117.60 : 6,179.64 = 1,521.28 : x
  2. Step 2: Convert to fraction form
    4,117.60/6,179.64 = 1,521.28/x
  3. Step 3: Cross multiply
    4,117.60x = 6,179.64 × 1,521.28
  4. Step 4: Simplify right side
    4,117.60x = 9,400,962.74
  5. Step 5: Solve for x
    x = 9,400,962.74/4,117.60
  6. Step 6: Final answer
    x = 2,283.12

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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.