Home / 4,746.90-7,120.32-1,284.14

Finding the Fourth Proportional to 4,746.90, 7,120.32 and 1,284.14

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Solution

The fourth proportional to 4,746.90, 7,120.32 and 1,284.14 is: 1,926.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,746.90 : 7,120.32 = 1,284.14 : x
  2. Step 2: Convert to fraction form
    4,746.90/7,120.32 = 1,284.14/x
  3. Step 3: Cross multiply
    4,746.90x = 7,120.32 × 1,284.14
  4. Step 4: Simplify right side
    4,746.90x = 9,143,487.72
  5. Step 5: Solve for x
    x = 9,143,487.72/4,746.90
  6. Step 6: Final answer
    x = 1,926.20

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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.