Home / 2,398.06-3,597.08-1,421.20

Finding the Fourth Proportional to 2,398.06, 3,597.08 and 1,421.20

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Solution

The fourth proportional to 2,398.06, 3,597.08 and 1,421.20 is: 2,131.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,398.06 : 3,597.08 = 1,421.20 : x
  2. Step 2: Convert to fraction form
    2,398.06/3,597.08 = 1,421.20/x
  3. Step 3: Cross multiply
    2,398.06x = 3,597.08 × 1,421.20
  4. Step 4: Simplify right side
    2,398.06x = 5,112,159.24
  5. Step 5: Solve for x
    x = 5,112,159.24/2,398.06
  6. Step 6: Final answer
    x = 2,131.79

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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.