Home / 3,587.90-4,951.02-2,015.70

Finding the Fourth Proportional to 3,587.90, 4,951.02 and 2,015.70

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Solution

The fourth proportional to 3,587.90, 4,951.02 and 2,015.70 is: 2,781.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.90 : 4,951.02 = 2,015.70 : x
  2. Step 2: Convert to fraction form
    3,587.90/4,951.02 = 2,015.70/x
  3. Step 3: Cross multiply
    3,587.90x = 4,951.02 × 2,015.70
  4. Step 4: Simplify right side
    3,587.90x = 9,979,771.01
  5. Step 5: Solve for x
    x = 9,979,771.01/3,587.90
  6. Step 6: Final answer
    x = 2,781.51

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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.