Home / 3,145.02-4,340.12-1,747.77

Finding the Fourth Proportional to 3,145.02, 4,340.12 and 1,747.77

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Solution

The fourth proportional to 3,145.02, 4,340.12 and 1,747.77 is: 2,411.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.02 : 4,340.12 = 1,747.77 : x
  2. Step 2: Convert to fraction form
    3,145.02/4,340.12 = 1,747.77/x
  3. Step 3: Cross multiply
    3,145.02x = 4,340.12 × 1,747.77
  4. Step 4: Simplify right side
    3,145.02x = 7,585,531.53
  5. Step 5: Solve for x
    x = 7,585,531.53/3,145.02
  6. Step 6: Final answer
    x = 2,411.92

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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.