Home / 7,802.31-11,696.52-2,870.81

Finding the Fourth Proportional to 7,802.31, 11,696.52 and 2,870.81

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Solution

The fourth proportional to 7,802.31, 11,696.52 and 2,870.81 is: 4,303.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,802.31 : 11,696.52 = 2,870.81 : x
  2. Step 2: Convert to fraction form
    7,802.31/11,696.52 = 2,870.81/x
  3. Step 3: Cross multiply
    7,802.31x = 11,696.52 × 2,870.81
  4. Step 4: Simplify right side
    7,802.31x = 33,578,428.10
  5. Step 5: Solve for x
    x = 33,578,428.10/7,802.31
  6. Step 6: Final answer
    x = 4,303.65

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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.