Home / 3,390.48-4,675.68-2,254.16

Finding the Fourth Proportional to 3,390.48, 4,675.68 and 2,254.16

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Solution

The fourth proportional to 3,390.48, 4,675.68 and 2,254.16 is: 3,108.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.48 : 4,675.68 = 2,254.16 : x
  2. Step 2: Convert to fraction form
    3,390.48/4,675.68 = 2,254.16/x
  3. Step 3: Cross multiply
    3,390.48x = 4,675.68 × 2,254.16
  4. Step 4: Simplify right side
    3,390.48x = 10,539,730.83
  5. Step 5: Solve for x
    x = 10,539,730.83/3,390.48
  6. Step 6: Final answer
    x = 3,108.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.