Home / 2,276.02-3,140.81-1,281.29

Finding the Fourth Proportional to 2,276.02, 3,140.81 and 1,281.29

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Solution

The fourth proportional to 2,276.02, 3,140.81 and 1,281.29 is: 1,768.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.02 : 3,140.81 = 1,281.29 : x
  2. Step 2: Convert to fraction form
    2,276.02/3,140.81 = 1,281.29/x
  3. Step 3: Cross multiply
    2,276.02x = 3,140.81 × 1,281.29
  4. Step 4: Simplify right side
    2,276.02x = 4,024,271.14
  5. Step 5: Solve for x
    x = 4,024,271.14/2,276.02
  6. Step 6: Final answer
    x = 1,768.12

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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.