Home / 1,341.90-1,847.76-1,190.35

Finding the Fourth Proportional to 1,341.90, 1,847.76 and 1,190.35

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Solution

The fourth proportional to 1,341.90, 1,847.76 and 1,190.35 is: 1,639.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.90 : 1,847.76 = 1,190.35 : x
  2. Step 2: Convert to fraction form
    1,341.90/1,847.76 = 1,190.35/x
  3. Step 3: Cross multiply
    1,341.90x = 1,847.76 × 1,190.35
  4. Step 4: Simplify right side
    1,341.90x = 2,199,481.12
  5. Step 5: Solve for x
    x = 2,199,481.12/1,341.90
  6. Step 6: Final answer
    x = 1,639.08

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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.