Home / 7,290.48-10,938.54-2,909.18

Finding the Fourth Proportional to 7,290.48, 10,938.54 and 2,909.18

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Solution

The fourth proportional to 7,290.48, 10,938.54 and 2,909.18 is: 4,364.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,290.48 : 10,938.54 = 2,909.18 : x
  2. Step 2: Convert to fraction form
    7,290.48/10,938.54 = 2,909.18/x
  3. Step 3: Cross multiply
    7,290.48x = 10,938.54 × 2,909.18
  4. Step 4: Simplify right side
    7,290.48x = 31,822,181.80
  5. Step 5: Solve for x
    x = 31,822,181.80/7,290.48
  6. Step 6: Final answer
    x = 4,364.90

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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.