Home / 4,287.17-5,919.65-3,290.87

Finding the Fourth Proportional to 4,287.17, 5,919.65 and 3,290.87

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Solution

The fourth proportional to 4,287.17, 5,919.65 and 3,290.87 is: 4,543.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.17 : 5,919.65 = 3,290.87 : x
  2. Step 2: Convert to fraction form
    4,287.17/5,919.65 = 3,290.87/x
  3. Step 3: Cross multiply
    4,287.17x = 5,919.65 × 3,290.87
  4. Step 4: Simplify right side
    4,287.17x = 19,480,798.60
  5. Step 5: Solve for x
    x = 19,480,798.60/4,287.17
  6. Step 6: Final answer
    x = 4,543.98

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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.