Home / 3,128.03-4,689.93-1,484.75

Finding the Fourth Proportional to 3,128.03, 4,689.93 and 1,484.75

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Solution

The fourth proportional to 3,128.03, 4,689.93 and 1,484.75 is: 2,226.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.03 : 4,689.93 = 1,484.75 : x
  2. Step 2: Convert to fraction form
    3,128.03/4,689.93 = 1,484.75/x
  3. Step 3: Cross multiply
    3,128.03x = 4,689.93 × 1,484.75
  4. Step 4: Simplify right side
    3,128.03x = 6,963,373.57
  5. Step 5: Solve for x
    x = 6,963,373.57/3,128.03
  6. Step 6: Final answer
    x = 2,226.12

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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.