Home / 2,802.50-3,867.45-1,560.50

Finding the Fourth Proportional to 2,802.50, 3,867.45 and 1,560.50

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Solution

The fourth proportional to 2,802.50, 3,867.45 and 1,560.50 is: 2,153.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.50 : 3,867.45 = 1,560.50 : x
  2. Step 2: Convert to fraction form
    2,802.50/3,867.45 = 1,560.50/x
  3. Step 3: Cross multiply
    2,802.50x = 3,867.45 × 1,560.50
  4. Step 4: Simplify right side
    2,802.50x = 6,035,155.73
  5. Step 5: Solve for x
    x = 6,035,155.73/2,802.50
  6. Step 6: Final answer
    x = 2,153.49

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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.