Home / 3,417.68-5,126.88-1,856.72

Finding the Fourth Proportional to 3,417.68, 5,126.88 and 1,856.72

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Solution

The fourth proportional to 3,417.68, 5,126.88 and 1,856.72 is: 2,785.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.68 : 5,126.88 = 1,856.72 : x
  2. Step 2: Convert to fraction form
    3,417.68/5,126.88 = 1,856.72/x
  3. Step 3: Cross multiply
    3,417.68x = 5,126.88 × 1,856.72
  4. Step 4: Simplify right side
    3,417.68x = 9,519,180.63
  5. Step 5: Solve for x
    x = 9,519,180.63/3,417.68
  6. Step 6: Final answer
    x = 2,785.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.