Home / 3,360.10-5,043.56-1,386.91

Finding the Fourth Proportional to 3,360.10, 5,043.56 and 1,386.91

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Solution

The fourth proportional to 3,360.10, 5,043.56 and 1,386.91 is: 2,081.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.10 : 5,043.56 = 1,386.91 : x
  2. Step 2: Convert to fraction form
    3,360.10/5,043.56 = 1,386.91/x
  3. Step 3: Cross multiply
    3,360.10x = 5,043.56 × 1,386.91
  4. Step 4: Simplify right side
    3,360.10x = 6,994,963.80
  5. Step 5: Solve for x
    x = 6,994,963.80/3,360.10
  6. Step 6: Final answer
    x = 2,081.77

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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.