Home / 4,209.90-6,312.62-2,101.20

Finding the Fourth Proportional to 4,209.90, 6,312.62 and 2,101.20

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Solution

The fourth proportional to 4,209.90, 6,312.62 and 2,101.20 is: 3,150.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,209.90 : 6,312.62 = 2,101.20 : x
  2. Step 2: Convert to fraction form
    4,209.90/6,312.62 = 2,101.20/x
  3. Step 3: Cross multiply
    4,209.90x = 6,312.62 × 2,101.20
  4. Step 4: Simplify right side
    4,209.90x = 13,264,077.14
  5. Step 5: Solve for x
    x = 13,264,077.14/4,209.90
  6. Step 6: Final answer
    x = 3,150.69

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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.