Home / 3,618.42-5,405.23-2,570.18

Finding the Fourth Proportional to 3,618.42, 5,405.23 and 2,570.18

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Solution

The fourth proportional to 3,618.42, 5,405.23 and 2,570.18 is: 3,839.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.42 : 5,405.23 = 2,570.18 : x
  2. Step 2: Convert to fraction form
    3,618.42/5,405.23 = 2,570.18/x
  3. Step 3: Cross multiply
    3,618.42x = 5,405.23 × 2,570.18
  4. Step 4: Simplify right side
    3,618.42x = 13,892,420.63
  5. Step 5: Solve for x
    x = 13,892,420.63/3,618.42
  6. Step 6: Final answer
    x = 3,839.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.