Home / 3,167.90-4,752.52-1,220.10

Finding the Fourth Proportional to 3,167.90, 4,752.52 and 1,220.10

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Solution

The fourth proportional to 3,167.90, 4,752.52 and 1,220.10 is: 1,830.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.90 : 4,752.52 = 1,220.10 : x
  2. Step 2: Convert to fraction form
    3,167.90/4,752.52 = 1,220.10/x
  3. Step 3: Cross multiply
    3,167.90x = 4,752.52 × 1,220.10
  4. Step 4: Simplify right side
    3,167.90x = 5,798,549.65
  5. Step 5: Solve for x
    x = 5,798,549.65/3,167.90
  6. Step 6: Final answer
    x = 1,830.41

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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.