Home / 2,178.74-3,268.02-535.25

Finding the Fourth Proportional to 2,178.74, 3,268.02 and 535.25

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Solution

The fourth proportional to 2,178.74, 3,268.02 and 535.25 is: 802.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.74 : 3,268.02 = 535.25 : x
  2. Step 2: Convert to fraction form
    2,178.74/3,268.02 = 535.25/x
  3. Step 3: Cross multiply
    2,178.74x = 3,268.02 × 535.25
  4. Step 4: Simplify right side
    2,178.74x = 1,749,207.71
  5. Step 5: Solve for x
    x = 1,749,207.71/2,178.74
  6. Step 6: Final answer
    x = 802.85

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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.