Home / 3,056.70-4,218.18-1,730.40

Finding the Fourth Proportional to 3,056.70, 4,218.18 and 1,730.40

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Solution

The fourth proportional to 3,056.70, 4,218.18 and 1,730.40 is: 2,387.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,056.70 : 4,218.18 = 1,730.40 : x
  2. Step 2: Convert to fraction form
    3,056.70/4,218.18 = 1,730.40/x
  3. Step 3: Cross multiply
    3,056.70x = 4,218.18 × 1,730.40
  4. Step 4: Simplify right side
    3,056.70x = 7,299,138.67
  5. Step 5: Solve for x
    x = 7,299,138.67/3,056.70
  6. Step 6: Final answer
    x = 2,387.91

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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.