Home / 2,515.02-3,474.90-1,987.94

Finding the Fourth Proportional to 2,515.02, 3,474.90 and 1,987.94

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Solution

The fourth proportional to 2,515.02, 3,474.90 and 1,987.94 is: 2,746.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.02 : 3,474.90 = 1,987.94 : x
  2. Step 2: Convert to fraction form
    2,515.02/3,474.90 = 1,987.94/x
  3. Step 3: Cross multiply
    2,515.02x = 3,474.90 × 1,987.94
  4. Step 4: Simplify right side
    2,515.02x = 6,907,901.39
  5. Step 5: Solve for x
    x = 6,907,901.39/2,515.02
  6. Step 6: Final answer
    x = 2,746.65

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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.