Home / 3,137.02-4,705.56-1,287.41

Finding the Fourth Proportional to 3,137.02, 4,705.56 and 1,287.41

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Solution

The fourth proportional to 3,137.02, 4,705.56 and 1,287.41 is: 1,931.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.02 : 4,705.56 = 1,287.41 : x
  2. Step 2: Convert to fraction form
    3,137.02/4,705.56 = 1,287.41/x
  3. Step 3: Cross multiply
    3,137.02x = 4,705.56 × 1,287.41
  4. Step 4: Simplify right side
    3,137.02x = 6,057,985.00
  5. Step 5: Solve for x
    x = 6,057,985.00/3,137.02
  6. Step 6: Final answer
    x = 1,931.13

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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.