Home / 2,353.04-3,246.18-1,421

Finding the Fourth Proportional to 2,353.04, 3,246.18 and 1,421

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Solution

The fourth proportional to 2,353.04, 3,246.18 and 1,421 is: 1,960.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,353.04 : 3,246.18 = 1,421 : x
  2. Step 2: Convert to fraction form
    2,353.04/3,246.18 = 1,421/x
  3. Step 3: Cross multiply
    2,353.04x = 3,246.18 × 1,421
  4. Step 4: Simplify right side
    2,353.04x = 4,612,821.78
  5. Step 5: Solve for x
    x = 4,612,821.78/2,353.04
  6. Step 6: Final answer
    x = 1,960.37

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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.