Home / 3,043.80-4,565.76-1,287.60

Finding the Fourth Proportional to 3,043.80, 4,565.76 and 1,287.60

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Solution

The fourth proportional to 3,043.80, 4,565.76 and 1,287.60 is: 1,931.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,043.80 : 4,565.76 = 1,287.60 : x
  2. Step 2: Convert to fraction form
    3,043.80/4,565.76 = 1,287.60/x
  3. Step 3: Cross multiply
    3,043.80x = 4,565.76 × 1,287.60
  4. Step 4: Simplify right side
    3,043.80x = 5,878,872.58
  5. Step 5: Solve for x
    x = 5,878,872.58/3,043.80
  6. Step 6: Final answer
    x = 1,931.43

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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.