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Finding the Fourth Proportional to 2,847.02, 3,929.13 and 1,652.45

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Solution

The fourth proportional to 2,847.02, 3,929.13 and 1,652.45 is: 2,280.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.02 : 3,929.13 = 1,652.45 : x
  2. Step 2: Convert to fraction form
    2,847.02/3,929.13 = 1,652.45/x
  3. Step 3: Cross multiply
    2,847.02x = 3,929.13 × 1,652.45
  4. Step 4: Simplify right side
    2,847.02x = 6,492,671.22
  5. Step 5: Solve for x
    x = 6,492,671.22/2,847.02
  6. Step 6: Final answer
    x = 2,280.52

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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.