Home / 2,877.19-3,970.28-1,617.84

Finding the Fourth Proportional to 2,877.19, 3,970.28 and 1,617.84

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Solution

The fourth proportional to 2,877.19, 3,970.28 and 1,617.84 is: 2,232.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.19 : 3,970.28 = 1,617.84 : x
  2. Step 2: Convert to fraction form
    2,877.19/3,970.28 = 1,617.84/x
  3. Step 3: Cross multiply
    2,877.19x = 3,970.28 × 1,617.84
  4. Step 4: Simplify right side
    2,877.19x = 6,423,281.84
  5. Step 5: Solve for x
    x = 6,423,281.84/2,877.19
  6. Step 6: Final answer
    x = 2,232.49

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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.