Home / 7,130.50-10,689.96-2,973.62

Finding the Fourth Proportional to 7,130.50, 10,689.96 and 2,973.62

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Solution

The fourth proportional to 7,130.50, 10,689.96 and 2,973.62 is: 4,458.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.50 : 10,689.96 = 2,973.62 : x
  2. Step 2: Convert to fraction form
    7,130.50/10,689.96 = 2,973.62/x
  3. Step 3: Cross multiply
    7,130.50x = 10,689.96 × 2,973.62
  4. Step 4: Simplify right side
    7,130.50x = 31,787,905.58
  5. Step 5: Solve for x
    x = 31,787,905.58/7,130.50
  6. Step 6: Final answer
    x = 4,458.02

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1.5x scale

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.