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Finding the Fourth Proportional to 1,748.81, 2,622.90 and 578.83

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Solution

The fourth proportional to 1,748.81, 2,622.90 and 578.83 is: 868.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.81 : 2,622.90 = 578.83 : x
  2. Step 2: Convert to fraction form
    1,748.81/2,622.90 = 578.83/x
  3. Step 3: Cross multiply
    1,748.81x = 2,622.90 × 578.83
  4. Step 4: Simplify right side
    1,748.81x = 1,518,206.65
  5. Step 5: Solve for x
    x = 1,518,206.65/1,748.81
  6. Step 6: Final answer
    x = 868.14

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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.