Home / 2,143.20-2,954.16-1,749.60

Finding the Fourth Proportional to 2,143.20, 2,954.16 and 1,749.60

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Solution

The fourth proportional to 2,143.20, 2,954.16 and 1,749.60 is: 2,411.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143.20 : 2,954.16 = 1,749.60 : x
  2. Step 2: Convert to fraction form
    2,143.20/2,954.16 = 1,749.60/x
  3. Step 3: Cross multiply
    2,143.20x = 2,954.16 × 1,749.60
  4. Step 4: Simplify right side
    2,143.20x = 5,168,598.34
  5. Step 5: Solve for x
    x = 5,168,598.34/2,143.20
  6. Step 6: Final answer
    x = 2,411.63

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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.