Home / 2,147.90-2,962.96-1,623.02

Finding the Fourth Proportional to 2,147.90, 2,962.96 and 1,623.02

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Solution

The fourth proportional to 2,147.90, 2,962.96 and 1,623.02 is: 2,238.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.90 : 2,962.96 = 1,623.02 : x
  2. Step 2: Convert to fraction form
    2,147.90/2,962.96 = 1,623.02/x
  3. Step 3: Cross multiply
    2,147.90x = 2,962.96 × 1,623.02
  4. Step 4: Simplify right side
    2,147.90x = 4,808,943.34
  5. Step 5: Solve for x
    x = 4,808,943.34/2,147.90
  6. Step 6: Final answer
    x = 2,238.90

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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.