Home / 2,557.70-3,836.59-802.66

Finding the Fourth Proportional to 2,557.70, 3,836.59 and 802.66

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Solution

The fourth proportional to 2,557.70, 3,836.59 and 802.66 is: 1,204.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,557.70 : 3,836.59 = 802.66 : x
  2. Step 2: Convert to fraction form
    2,557.70/3,836.59 = 802.66/x
  3. Step 3: Cross multiply
    2,557.70x = 3,836.59 × 802.66
  4. Step 4: Simplify right side
    2,557.70x = 3,079,475.18
  5. Step 5: Solve for x
    x = 3,079,475.18/2,557.70
  6. Step 6: Final answer
    x = 1,204.00

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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.