Home / 3,741.40-5,612.10-2,429.20

Finding the Fourth Proportional to 3,741.40, 5,612.10 and 2,429.20

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Solution

The fourth proportional to 3,741.40, 5,612.10 and 2,429.20 is: 3,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,741.40 : 5,612.10 = 2,429.20 : x
  2. Step 2: Convert to fraction form
    3,741.40/5,612.10 = 2,429.20/x
  3. Step 3: Cross multiply
    3,741.40x = 5,612.10 × 2,429.20
  4. Step 4: Simplify right side
    3,741.40x = 13,632,913.32
  5. Step 5: Solve for x
    x = 13,632,913.32/3,741.40
  6. Step 6: Final answer
    x = 3,643.80

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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.