Home / 7,130.25-10,689.59-2,973.37

Finding the Fourth Proportional to 7,130.25, 10,689.59 and 2,973.37

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Solution

The fourth proportional to 7,130.25, 10,689.59 and 2,973.37 is: 4,457.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.25 : 10,689.59 = 2,973.37 : x
  2. Step 2: Convert to fraction form
    7,130.25/10,689.59 = 2,973.37/x
  3. Step 3: Cross multiply
    7,130.25x = 10,689.59 × 2,973.37
  4. Step 4: Simplify right side
    7,130.25x = 31,784,106.22
  5. Step 5: Solve for x
    x = 31,784,106.22/7,130.25
  6. Step 6: Final answer
    x = 4,457.65

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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.