Home / 3,419.48-4,718.81-1,927.35

Finding the Fourth Proportional to 3,419.48, 4,718.81 and 1,927.35

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Solution

The fourth proportional to 3,419.48, 4,718.81 and 1,927.35 is: 2,659.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.48 : 4,718.81 = 1,927.35 : x
  2. Step 2: Convert to fraction form
    3,419.48/4,718.81 = 1,927.35/x
  3. Step 3: Cross multiply
    3,419.48x = 4,718.81 × 1,927.35
  4. Step 4: Simplify right side
    3,419.48x = 9,094,788.82
  5. Step 5: Solve for x
    x = 9,094,788.82/3,419.48
  6. Step 6: Final answer
    x = 2,659.70

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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.