Home / 2,625.02-3,937.40-981.44

Finding the Fourth Proportional to 2,625.02, 3,937.40 and 981.44

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Solution

The fourth proportional to 2,625.02, 3,937.40 and 981.44 is: 1,472.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.02 : 3,937.40 = 981.44 : x
  2. Step 2: Convert to fraction form
    2,625.02/3,937.40 = 981.44/x
  3. Step 3: Cross multiply
    2,625.02x = 3,937.40 × 981.44
  4. Step 4: Simplify right side
    2,625.02x = 3,864,321.86
  5. Step 5: Solve for x
    x = 3,864,321.86/2,625.02
  6. Step 6: Final answer
    x = 1,472.11

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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.