Home / 7,916.71-11,875.09-2,985.02

Finding the Fourth Proportional to 7,916.71, 11,875.09 and 2,985.02

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Solution

The fourth proportional to 7,916.71, 11,875.09 and 2,985.02 is: 4,477.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,916.71 : 11,875.09 = 2,985.02 : x
  2. Step 2: Convert to fraction form
    7,916.71/11,875.09 = 2,985.02/x
  3. Step 3: Cross multiply
    7,916.71x = 11,875.09 × 2,985.02
  4. Step 4: Simplify right side
    7,916.71x = 35,447,381.15
  5. Step 5: Solve for x
    x = 35,447,381.15/7,916.71
  6. Step 6: Final answer
    x = 4,477.54

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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.