Home / 9,061.50-13,590.90-2,821.68

Finding the Fourth Proportional to 9,061.50, 13,590.90 and 2,821.68

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Solution

The fourth proportional to 9,061.50, 13,590.90 and 2,821.68 is: 4,232.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,061.50 : 13,590.90 = 2,821.68 : x
  2. Step 2: Convert to fraction form
    9,061.50/13,590.90 = 2,821.68/x
  3. Step 3: Cross multiply
    9,061.50x = 13,590.90 × 2,821.68
  4. Step 4: Simplify right side
    9,061.50x = 38,349,170.71
  5. Step 5: Solve for x
    x = 38,349,170.71/9,061.50
  6. Step 6: Final answer
    x = 4,232.10

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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.