Home / 1,423.10-1,962.60-1,214.03

Finding the Fourth Proportional to 1,423.10, 1,962.60 and 1,214.03

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Solution

The fourth proportional to 1,423.10, 1,962.60 and 1,214.03 is: 1,674.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.10 : 1,962.60 = 1,214.03 : x
  2. Step 2: Convert to fraction form
    1,423.10/1,962.60 = 1,214.03/x
  3. Step 3: Cross multiply
    1,423.10x = 1,962.60 × 1,214.03
  4. Step 4: Simplify right side
    1,423.10x = 2,382,655.28
  5. Step 5: Solve for x
    x = 2,382,655.28/1,423.10
  6. Step 6: Final answer
    x = 1,674.27

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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.