Home / 7,302.90-10,938.15-2,918.10

Finding the Fourth Proportional to 7,302.90, 10,938.15 and 2,918.10

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Solution

The fourth proportional to 7,302.90, 10,938.15 and 2,918.10 is: 4,370.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,302.90 : 10,938.15 = 2,918.10 : x
  2. Step 2: Convert to fraction form
    7,302.90/10,938.15 = 2,918.10/x
  3. Step 3: Cross multiply
    7,302.90x = 10,938.15 × 2,918.10
  4. Step 4: Simplify right side
    7,302.90x = 31,918,615.52
  5. Step 5: Solve for x
    x = 31,918,615.52/7,302.90
  6. Step 6: Final answer
    x = 4,370.68

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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.